CN113224564B

CN113224564B - Connector connecting body and connector

Info

Publication number: CN113224564B
Application number: CN202110492571.1A
Authority: CN
Inventors: 宫崎洋二; 南井勇希
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2016-04-28
Filing date: 2017-04-13
Publication date: 2023-08-25
Anticipated expiration: 2037-04-13
Also published as: WO2017187992A1; CN113224564A; CN109075506B; JP2017199634A; JP6709990B2; CN109075506A

Abstract

A connector body and a connector are provided. The connector body includes a terminal, a holding fitting, and a housing having a peripheral wall portion, the holding fitting including: a first U-shaped portion disposed on the first wall portion and extending in a first direction; a second U-shaped portion disposed on the second wall portion; a third U-shaped portion disposed on the third wall portion; and a connecting portion that connects the first U-shaped portion and the second U-shaped portion, wherein the first U-shaped portion, the second U-shaped portion, and the third U-shaped portion are curved to protrude upward in a state in which a side of the connector body that faces the counterpart connector body faces upward in a third direction that intersects the first direction and the second direction, and the connecting portion is connected to at least one of a lower end of the first U-shaped portion and a lower end of the second U-shaped portion.

Description

Connector connecting body and connector

The present application is a divisional application of the application patent application of the filing date 2017, 4 and 13, the filing number 201780021255.8 (international filing number PCT/JP 2017/015048), and the application name "holding fitting, connector".

Technical Field

The present disclosure relates to a holding fitting, and a connector and a connector provided with the holding fitting.

Background

Conventionally, as a connector, a connector is known which includes: a socket (a connector) having a socket terminal arranged in a socket housing; and a header (another connector) in which header terminals are arranged in a header housing (for example, refer to patent document 1).

In patent document 1, the strength of the housing of the connector assembly is improved by providing a holding fitting in the housing (socket housing, header housing) of the connector assembly.

Prior art literature

Patent literature

Patent document 1: JP patent publication No. 2013-065541

Disclosure of Invention

The present disclosure relates to retention fittings insert molded to a housing of a connector body.

The holding fitting has: a first U-shaped portion extending in one direction; a second U-shaped portion extending in a direction intersecting the one direction and disposed on one side of the one direction of the first U-shaped portion; and a third U-shaped portion extending in a direction intersecting the one direction and disposed on the other side of the one direction of the first U-shaped portion.

And the first U-shaped part, the second U-shaped part and the third U-shaped part are insert molded on the peripheral wall part of the shell of the connector.

The connector assembly according to the present disclosure includes the holding fitting.

Further, the connector to which the present disclosure relates has a pair of connector connectors, at least one of which is the above-described connector.

Drawings

Fig. 1 is a perspective view of a plug member of a connector according to an embodiment of the present disclosure, viewed from a lower side.

Fig. 2 is a perspective view of a plug member of a connector according to an embodiment of the present disclosure, as viewed from a front surface side.

Fig. 3 is a diagram showing a header of a connector according to an embodiment of the present disclosure, (a) is a side view, (b) is a lower side view, (c) is a plan view, and (d) is a front view.

Fig. 4 is a perspective view of a header housing of a connector according to an embodiment of the present disclosure, viewed from a lower side.

Fig. 5 is a perspective view of a header housing of a connector according to an embodiment of the present disclosure, as viewed from a front surface side.

Fig. 6 is a diagram showing a header housing of a connector according to an embodiment of the present disclosure, (a) is a side view, (b) is a lower side view, (c) is a plan view, and (d) is a front view.

Fig. 7 is a diagram showing a first header terminal of a connector according to an embodiment of the present disclosure, (a) is a first perspective view, (b) is a second perspective view, (c) is a third perspective view, and (d) is a fourth perspective view.

Fig. 8 is a diagram showing a first header terminal of a connector according to an embodiment of the present disclosure, (a) is a side view, (b) is a plan view, (c) is a lower side view, (d) is a front view, and (e) is a back view.

Fig. 9 is a diagram showing a plug-side holding fitting of a connector according to an embodiment of the present disclosure, (a) is a first perspective view, (b) is a second perspective view, (c) is a third perspective view, and (d) is a fourth perspective view.

Fig. 10 is a diagram showing a plug-side holding fitting of a connector according to an embodiment of the present disclosure, (a) is a first side view, (b) is a plan view, (c) is a lower side view, (d) is a front view, (e) is a rear view, and (f) is a second side view.

Fig. 11 is a perspective view of a socket of a connector according to an embodiment of the present disclosure, as seen from a surface side.

Fig. 12 is a perspective view of a socket of a connector according to an embodiment of the present disclosure, viewed from a lower side.

Fig. 13 is a diagram showing a socket of a connector according to an embodiment of the present disclosure, (a) is a side view, (b) is a plan view, (c) is a lower side view, and (d) is a front view.

Fig. 14 is a perspective view of a socket housing of a connector according to an embodiment of the present disclosure, viewed from a front surface side.

Fig. 15 is a perspective view of a socket housing of a connector according to an embodiment of the present disclosure, viewed from a lower side.

Fig. 16 is a diagram showing a socket housing of a connector according to an embodiment of the present disclosure, (a) is a side view, (b) is a plan view, (c) is a lower side view, and (d) is a front view.

Fig. 17 is a diagram showing a first socket terminal of a connector according to an embodiment of the present disclosure, (a) is a first perspective view, (b) is a second perspective view, (c) is a third perspective view, and (d) is a fourth perspective view.

Fig. 18 is a diagram showing a first socket terminal of a connector according to an embodiment of the present disclosure, (a) is a side view, (b) is a plan view, (c) is a lower side view, (d) is a front view, and (e) is a back view.

Fig. 19 is a diagram showing a second socket terminal of the connector according to an embodiment of the present disclosure, (a) is a first perspective view, (b) is a second perspective view, (c) is a third perspective view, and (d) is a fourth perspective view.

Fig. 20 is a diagram showing a second socket terminal of the connector according to an embodiment of the present disclosure, (a) is a side view, (b) is a plan view, (c) is a lower side view, (d) is a front view, and (e) is a back view.

Fig. 21 is a diagram showing a socket-side holding fitting of a connector according to an embodiment of the present disclosure, (a) is a first perspective view, (b) is a second perspective view, (c) is a third perspective view, and (d) is a fourth perspective view.

Fig. 22 is a diagram showing a socket-side holding fitting of a connector according to an embodiment of the present disclosure, (a) is a rear view, (b) is a plan view, (c) is a lower side view, (d) is a front view, (e) is a first side view, and (f) is a second side view.

Fig. 23 is a view showing a state immediately before the plug and the socket are fitted in accordance with an embodiment of the present disclosure, and is a sectional view in which a first plug terminal and a first socket terminal are cut at a position where they are arranged.

Fig. 24 is a view showing a state in which a plug and a socket according to an embodiment of the present disclosure are fitted, and is a sectional view in which a first plug terminal and a first socket terminal are cut at a position where they are arranged.

Fig. 25 is a view showing a state immediately before the plug and the socket are fitted in accordance with an embodiment of the present disclosure, and is a sectional view in which a portion where the plug-side holding metal fitting and the second socket terminal are arranged is cut.

Fig. 26 is a view showing a state in which a plug and a socket according to an embodiment of the present disclosure are fitted, and is a sectional view in which a portion where a plug-side holding fitting and a second socket terminal are arranged is cut.

Detailed Description

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

Hereinafter, the description will be given with the longitudinal direction of the connector (header-side housing and socket-side housing) being the X direction, the width direction (short side direction) of the connector (header-side housing and socket-side housing) being the Y direction, and the vertical direction of the connector in fig. 23 to 26 being the Z direction. Note that, the socket and the plug are described with the upper side in the state shown in fig. 23 to 26 being the upper side in the up-down direction (front side) and the lower side being the lower side in the up-down direction (lower side).

First, an outline of the connector 10 according to the present embodiment will be described with reference to fig. 23 to 26.

As shown in fig. 23 to 26, the connector 10 according to the present embodiment includes a plug (connector) 20 and a socket (connector) 30 that are fitted to each other. In the present embodiment, the header 20 has a header housing 21 in which a header-side signal terminal (first header terminal) 22 and a header-side power supply terminal (second header terminal) 23 are disposed. On the other hand, the socket 30 has a socket housing 31 in which a socket-side signal terminal (first socket terminal) 32 and a socket-side power supply terminal (second socket terminal) 33 are disposed.

By fitting the plug housing 21 and the socket housing 31, the plug-side signal terminal 22 and the socket-side signal terminal 32 are brought into contact, and the plug-side power terminal 23 and the socket-side power terminal 33 are brought into contact.

Further, the plug-side holding metal fitting 24 (see fig. 1) is disposed in the plug housing 21, and the socket-side holding metal fitting 34 is disposed in the socket housing 31.

The header-side holding fitting 24 is used to increase the strength of the header housing 21, and the fixing portion provided in the header-side holding fitting 24 is attached and fixed to the second circuit board 40.

On the other hand, the socket-side holding fitting 34 is used to increase the strength of the socket housing 31, and the fixing portion provided in the socket-side holding fitting 34 is attached and fixed to the first circuit board 60.

In the present embodiment, the plug-side power supply terminal 23 and the plug-side holding metal fitting 24 are integrally provided, and the plug-side holding metal fitting 24 also functions as a plug-side power supply terminal. On the other hand, the socket-side holding fitting 34 is formed of a member different from the socket-side power supply terminal 33. That is, the socket-side holding fitting 34 is provided separately from the socket-side power supply terminal 33.

The plug-side power supply terminal 23 and the plug-side holding metal fitting 24 may be provided separately, or the socket-side holding metal fitting 34 and the socket-side power supply terminal 33 may be provided integrally.

The plug 20 is mounted on the second circuit board 40, and the socket 30 is mounted on the first circuit board 60.

Therefore, when the plug 20 is fitted to the socket 30, the second circuit board 40 on which the plug 20 is mounted and the first circuit board 60 on which the socket 30 is mounted are electrically connected.

Specifically, by mounting the header 20 according to the present embodiment on the second circuit board 40, the header-side signal terminals 22 and the header-side power supply terminals 23 are electrically connected to the circuit pattern on the second circuit board 40. As the second circuit board 40, a printed wiring board (Printed Circuit Board), an FPC (Flexible Printed Circuit, a flexible printed circuit), or the like can be used.

Further, by mounting the socket 30 according to the present embodiment on the first circuit board 60, the socket-side signal terminals 32 and the socket-side power supply terminals 33 are electrically connected to the circuit pattern on the first circuit board 60. As the first circuit board 60, a printed wiring board (Printed Circuit Board), an FPC (Flexible Printed Circuit, a flexible printed circuit), or the like can be used.

The connector 10 according to the present embodiment is also assumed to be used for electrically connecting circuit boards in electronic devices, such as smart phones, which are portable terminals. However, the connector 10 of the present disclosure may be used for any electrical connection of components to each other as long as it is used in an electronic device.

Next, a structure of the header 20 used in the connector 10 will be described with reference to fig. 1 to 10.

The header 20 has the header housing 21 as described above. In the present embodiment, the header housing 21 is molded of an insulating synthetic resin and has a rectangular (oblong) shape as a whole in a plan view (see fig. 1 to 6).

A metallic header-side signal terminal 22, a metallic header-side power supply terminal 23, and a metallic header-side holding metal fitting 24 are disposed in the header housing 21. The plug-side signal terminal 22 is a terminal for transmitting a signal by being electrically connected to a signal line. On the other hand, the plug-side power supply terminal 23 is a terminal for supplying power by being electrically connected to a power line. As described above, the plug-side holding fitting 24 is integrally formed with the plug-side power supply terminal 23. Therefore, in the present embodiment, the plug-side holding fitting 24 is used to increase the strength of the plug housing 21, and is electrically connected to the power cord to supply power.

Further, in the present embodiment, the header-side signal terminals 22 and the header-side power terminals 23 are arranged in a row along the longitudinal direction X of the header housing 21.

Specifically, a plurality of header-side signal terminals 22 are provided side by side at a predetermined pitch along one long side of the header housing 21. The header-side signal terminal group (first header terminal group) G3 is composed of a plurality of header-side signal terminals 22 arranged side by side on one side in the width direction (short-side direction) Y of the header housing 21.

Further, along one long side of the header housing 21, one header-side power supply terminal 23 is provided so as to be separated from one header-side signal terminal group G3. The plug-side terminal group G1 is constituted by one plug-side signal terminal group G3 and one plug-side power supply terminal 23 which are arranged side by side on one side in the width direction (short-side direction) Y of the plug housing 21.

A plurality of header-side signal terminals 22 are also provided side by side at a predetermined pitch along the other long side of the header housing 21. The plug-side signal terminal group G3 is constituted by a plurality of plug-side signal terminals 22 arranged side by side on the other side in the width direction (short-side direction) Y of the plug housing 21.

Further, along the other long side of the header housing 21, one header-side power supply terminal 23 is provided so as to be separated from one header-side signal terminal group G3. The plug-side terminal group G1 is constituted by one plug-side signal terminal group G3 and one plug-side power supply terminal 23 which are arranged side by side on the other side in the width direction (short-side direction) Y of the plug housing 21.

As described above, in the present embodiment, two (multiple) rows of header-side terminal groups G1 are arranged in the header housing 21, and the header-side terminal groups G1 include the header-side signal terminal group G3 and the header-side power supply terminal 23 arranged along the longitudinal direction X of the header housing 21.

In the present embodiment, the plug-side power supply terminal 23 is arranged on the side of the longitudinal direction X of the plug housing 21 in the plug-side terminal group G1 formed on the side of the width direction (short-side direction) Y of the plug housing 21. In the header-side terminal group G1 formed on the other side in the width direction (short-side direction) Y of the header housing 21, the header-side power supply terminal 23 is disposed on the other side in the long-side direction X of the header housing 21.

As described above, in the present embodiment, the plug-side power supply terminals 23 are disposed only on one side in the longitudinal direction X of the plug housing 21 and on one side in the width direction (short-side direction) Y, and on the other side in the longitudinal direction X of the plug housing 21 and on the other side in the width direction (short-side direction) Y.

In other words, only two plug-side power supply terminals 23 are arranged in the plug housing 21, and the two plug-side power supply terminals 23 are arranged in the diagonal portions of the rectangular (oblong) plug housing 21.

At this time, the two plug-side power supply terminals 23 are disposed in the plug housing 21 in a state in which the respective plug-side holding fittings 24 are disposed at both ends in the longitudinal direction X of the plug housing 21 (in a state in which the plug-side holding fittings 24 are located further outside than the plug-side power supply terminals 23 in the longitudinal direction X of the plug housing 21).

Further, in the present embodiment, the header-side signal terminal group G3 on one long side and the header-side signal terminal group G3 on the other long side are formed in a state of being shifted in the longitudinal direction X of the header housing 21.

Specifically, the header-side signal terminals 22 are arranged such that one header-side signal terminal group G3 is shifted by one pitch from the other header-side signal terminal group G3 in the longitudinal direction X of the header housing 21.

With this configuration, the plug-side signal terminals 22 disposed at one end of the one plug-side signal terminal group G3 in the X direction and the plug-side signal terminals 22 other than the plug-side signal terminals 22 disposed at the other end of the other plug-side signal terminal group G3 in the X direction can be disposed so as to face each other in the Y direction.

In the present embodiment, the plug-side power supply terminal 23 constituting the other plug-side terminal group G1 is arranged so as to overlap the plug-side signal terminal 22 arranged at one end of the one plug-side signal terminal group G3 in the X direction in the Y direction.

The plug-side power supply terminal 23 constituting one plug-side terminal group G1 is arranged so as to overlap the plug-side signal terminal 22 arranged at the other end of the other plug-side signal terminal group G3 in the X direction in the Y direction.

Next, the structure of the header housing 21 will be described with reference to fig. 4 to 6.

The header housing 21 is formed into a substantially box shape with one side (lower side in fig. 5) opening by a plate-like wall portion 21a and a peripheral wall portion 21b formed continuously into a substantially rectangular annular shape along a peripheral edge portion thereof.

Further, a recess 21c (see fig. 4) is formed inside the peripheral wall portion 21 b. Further, a tapered portion 21d is formed at the lower end of the peripheral wall portion 21b on the outer peripheral side, and the tapered portion 21d is inclined so as to be located upward (toward the plate-like wall portion 21 a) as it goes outward.

The peripheral wall portion 21b between the adjacent plug-side signal terminals 22 and between the plug-side signal terminal group G3 and the plug-side power supply terminal 23 is bent into an R shape (inverted U shape).

In the present embodiment, the peripheral wall portion 21b includes: a pair of long-side wall portions 21e opposed to each other in the width direction (short-side direction) Y, and a pair of short-side wall portions 21f opposed to each other in the long-side direction X.

The length of the short-side wall portion 21f in the width direction Y is formed to be substantially equal to the distance between the two opposed long-side wall portions 21e (the distance from the outer surface 21k of one long-side wall portion 21e to the outer surface 21k of the other long-side wall portion 21 e). Further, the length of the longitudinal direction X of the longitudinal direction wall portion 21e is formed to be substantially equal to the distance between the two opposed short side direction wall portions 21f (the distance from the outer surface 21m of one short side direction wall portion 21f to the outer surface 21m of the other short side direction wall portion 21 f).

As described above, in the present embodiment, the header housing 21 is formed to have a substantially rectangular shape in a plan view as a whole. Therefore, the outer surface 21k of the long-side wall portion 21e and the outer surface 21m of the short-side wall portion 21f become the outer surface 21h of the peripheral wall portion 21b, and the inner surface 21n of the long-side wall portion 21e and the inner surface 21p of the short-side wall portion 21f become the inner surface 21i of the peripheral wall portion 21 b.

Next, the structure of the header-side signal terminal 22 will be described with reference to fig. 7 and 8.

The header-side signal terminal 22 is made of metal and is an electrical conductor. The header-side signal terminal 22 includes a root portion (first header-terminal-side fixing portion) 22a protruding from a side surface of the header housing 21. The root 22a is a portion fixed to the circuit pattern of the second circuit board 40 by solder. As is clear from fig. 23, the upper surface of the root portion 22a extends substantially parallel to the upper surface of the header housing 21 (the outer surface 21j of the plate-like wall portion 21 a).

The header-side signal terminal 22 has an inner portion 22b continuous with the root portion 22a. The inner portion 22b is bent to penetrate the joint portion between the plate-shaped wall portion 21a and the longitudinal wall portion 21e of the header housing 21, and extends along the inner surface 21n of the longitudinal wall portion 21e to the distal end portion of the longitudinal wall portion 21 e.

Further, a recess 22c is formed in the inner surface of the inner portion 22b of the header-side signal terminal 22. In the present embodiment, the concave portion 22c is formed into a substantially triangular prism shape by inclined surfaces 22h continuously provided on both sides in the longitudinal direction X and inclined surfaces 22i continuously provided on both sides in the up-down direction Z. The arcuate projection 32k of the socket-side signal terminal 32 described later is fitted into the recess 22c.

The header-side signal terminal 22 further includes a distal end portion 22d continuous with one end of the inner portion 22 b. The front end portion 22d is curved along the shape of the front end of the longitudinal wall portion 21e of the header housing 21.

The header-side signal terminal 22 includes a locked portion 22e continuous with the distal end portion 22d. In the present embodiment, the engaged portion 22e is formed from one end to the other end in the longitudinal direction X of the header housing 21 in the header-side signal terminal 22. That is, the step-shaped engaged portion 22e is formed over the entire width direction of the header-side signal terminal 22.

As is clear from a comparison between fig. 23 and 24, when the plug-side signal terminal 22 is fitted into the socket-side signal terminal 32, the engaged portion 22e is inserted into a position deeper than the engaging portion 32d, which is a stepped portion. Therefore, when the plug-side signal terminal 22 is pulled out from the socket-side signal terminal 32, the engaged portion 22e abuts against the engaging portion 32 d. That is, the engaged portion 22e of the header-side signal terminal 22 is engaged by the engaging portion 32d of the socket-side signal terminal 32. Therefore, the plug-side signal terminal 22 is prevented from being pulled out from the socket-side signal terminal 32. That is, only by applying an external force smaller than a given value, the plug-side signal terminal 22 cannot be pulled out from the socket-side signal terminal 32. On the other hand, when a large external force equal to or greater than the predetermined value is applied, the plug-side signal terminal 22 can be pulled out from the socket-side signal terminal 32. That is, the engaged portion 22e of the header-side signal terminal 22 and the engagement portion 32d of the socket-side signal terminal 32 constitute a locking mechanism capable of releasing the engagement by applying an external force equal to or greater than a predetermined value.

The locked portion 22e may be produced by rolling a base material having a locally different thickness of the plug-side signal terminal 22, or may be produced by bending a base material of the plug-side signal terminal 22 in the thickness direction.

The header-side signal terminal 22 further includes an outer portion 22f, and the outer portion 22f is continuous with the distal end portion 22d via the engaged portion 22e and extends along the outer surface 21k of the longitudinal wall portion 21 e. In the present embodiment, the protruding wall portion 21g protruding from the outer periphery of the longitudinal wall portion 21e (the peripheral wall portion 21 b) positions the distal end of the outer side portion 22f of the header-side signal terminal 22.

Such a header-side signal terminal 22 can be formed by bending a strip-shaped metal material having a predetermined thickness.

In the present embodiment, the header-side signal terminals 22 are disposed in the header housing 21 by insert molding. The plug-side signal terminals 22 may be arranged in the plug housing 21 by pressing the plug-side signal terminals 22 into the plug housing 21.

Next, the configuration of the plug-side power supply terminal 23 and the plug-side holding metal fitting 24 will be described with reference to fig. 9 and 10.

The plug-side power supply terminal 23 is made of metal by molding and is an electric conductor. The plug-side power supply terminal 23 includes an inner portion 23a disposed along the inner surface of the plug housing 21. The inner portion 23a extends from the joint portion of the plate-shaped wall portion 21a and the longitudinal wall portion 21e of the header housing 21 along the inner surface 21n of the longitudinal wall portion 21e to the front end portion of the longitudinal wall portion 21 e.

Further, a concave portion 23b is formed on the inner surface of the inner portion 23a of the plug-side power supply terminal 23. In the present embodiment, the concave portion 23b is formed in a substantially rectangular pyramid shape by a flat deep surface 23g, inclined surfaces 23h provided continuously on both sides in the longitudinal direction X of the deep surface 23g, and inclined surfaces 23i provided continuously on both sides in the vertical direction Z of the deep surface 23 g. The arcuate projection 33k of the socket-side power supply terminal 33 described later is fitted into the recess 23b.

The plug-side power supply terminal 23 further includes a distal end portion 23c continuous with one end of the inner portion 23a. The front end portion 23c is curved along the shape of the front end of the longitudinal wall portion 21e of the header housing 21.

The plug-side power supply terminal 23 includes a locked portion 23d continuous with the distal end portion 23c. As is clear from a comparison between fig. 25 and 26, when the plug-side power supply terminal 23 is fitted into the socket-side power supply terminal 33, the engaged portion 23d is inserted into a position deeper than the engaging portion 33d serving as the step portion. Therefore, when the plug-side power supply terminal 23 is pulled from the socket-side power supply terminal 33, the engaged portion 23d abuts against the engaging portion 33 d. That is, the engaged portion 23d of the plug-side power supply terminal 23 is engaged by the engaging portion 33d of the socket-side power supply terminal 33. Therefore, the plug-side power supply terminal 23 is prevented from being pulled out from the socket-side power supply terminal 33. That is, only by applying an external force smaller than a given value, the plug-side power supply terminal 23 cannot be pulled from the socket-side power supply terminal 33. On the other hand, when a large external force equal to or greater than the predetermined value is applied, the plug-side power supply terminal 23 can be pulled out from the socket-side power supply terminal 33. That is, the engaged portion 23d of the plug-side power supply terminal 23 and the engaged portion 33d of the socket-side power supply terminal 33 are configured as a locking mechanism capable of releasing the engagement by an external force equal to or greater than a predetermined value.

The locked portion 23d may be produced by rolling a base material having a locally different thickness of the plug-side power supply terminal 23, or may be produced by bending a base material of the plug-side power supply terminal 23 in the thickness direction.

The plug-side power supply terminal 23 includes an outer portion 23e, and the outer portion 23e is continuous with the engaged portion 23d and is disposed along the outer surface of the plug housing 21. The outer portion 23e extends from the engaged portion 23d to the plate-like wall portion 21a along the outer surface 21k of the longitudinal wall portion 21 e.

The header-side power supply terminal 23 includes a root portion (second header-terminal-side fixing portion) 23f, and the root portion 23f is continuous with the outer side portion 23e and protrudes from the side surface of the header housing 21. The root 23f is a portion fixed to the circuit pattern of the second circuit board 40 by solder. As is clear from fig. 25, the upper surface of the root portion 23f extends substantially parallel to the upper surface of the header housing 21 (the outer surface 21j of the plate-like wall portion 21 a).

In the present embodiment, the root portion 23f is formed to have a smaller width along the longitudinal direction X of the header housing 21 than the width along the longitudinal direction X of the outer portion 23e (other portion of the header-side power supply terminal 23). The root portion 23f is provided continuously with a portion (a side away from the header-side signal terminal 22 adjacent in the X direction) on the outer side of the outer side portion 23e in the longitudinal direction X.

That is, in a state where the header-side signal terminal 22 and the header-side power supply terminal 23 are disposed in the header housing 21, the distance between the root portion (first header-terminal-side fixed portion) 22a and the root portion (second header-terminal-side fixed portion) 23f is greater than the distance between contact portions (first socket-terminal-side contact portions) R1 and R2 of the header-side signal terminal 22 and contact portions (second header-terminal-side fixed portions) R3 and R4 of the header-side power supply terminal 23, which will be described later.

By this, the insulation distance between the plug-side power supply terminal 23 and the plug-side signal terminal 22 is increased, and insulation is ensured.

As described above, the header-side signal terminals 22 and the header-side power terminals 23 are arranged along the longitudinal direction X of the header housing 21. In the present embodiment, the header-side power supply terminal 23 is formed to have a width along the longitudinal direction X of the header housing 21 that is wider than the width along the longitudinal direction X of the header-side signal terminal 22.

That is, in the present embodiment, the header-side signal terminals 22 are provided, the width of the header housing 21 in the longitudinal direction X being narrower than the header-side power supply terminals 23. In the present embodiment, all of the header-side signal terminals 22 are narrower than the header-side power supply terminals 23 with respect to the width in the longitudinal direction X of the header housing 21.

Further, in the present embodiment, the locked portion 23d is formed from one end to the other end in the longitudinal direction X of the header housing 21 in the header-side power supply terminal 23. That is, the step-shaped locked portion 23d is formed over the entire width of the wide plug-side power supply terminal 23. In this way, the locking force by the engaged portion 23d of the plug-side power supply terminal 23 and the engaging portion 33d of the socket-side power supply terminal 33 can be increased. Further, even when the plug 20 and the socket 30 are repeatedly inserted and removed, the engaged portion 23d is less likely to be worn, and thus a longer life of the product can be achieved.

In the present embodiment, the plug-side power supply terminal 23 is disposed in the plug housing 21 by insert molding. Further, the plug-side power supply terminal 23 may be arranged in the plug housing 21 by pressing the plug-side power supply terminal 23 into the plug housing 21.

A plug-side power supply terminal 23 is fixed with a plug-side holding fitting 24 via a coupling portion 25.

The header-side holding metal fitting 24 is made of metal molded and is an electric conductor, similarly to the header-side signal terminal 22 and the header-side power supply terminal 23.

The member integrating the plug-side power supply terminal 23 and the plug-side holding metal fitting 24 can be formed by bending a metal plate having a predetermined thickness.

The plug-side holding metal fitting 24 includes a substantially rectangular plate-shaped lower wall portion 24a, and the lower wall portion 24a is disposed so as to cover substantially the entire front end (lower end) of the short-side wall portion 21 f.

The header-side holding metal fitting 24 includes a pair of first side wall portions 24b extending from both ends of the lower wall portion 24a in the width direction (short-side direction) Y toward the plate-like wall portion 21 a.

The first side wall portion 24b is provided to extend along the outer surface 21k of the longitudinal wall portion 21e, and is formed to have a tip end protruding slightly beyond the outer surface 21j of the plate-like wall portion 21 a. The front end of the first side wall portion 24b is a fixing portion 24d to be fixed to the circuit pattern of the second circuit board 40 by solder.

Further, a coupling portion 25 is continuously provided to one first side wall portion 24b of the pair of first side wall portions 24b. In the present embodiment, the connecting portion 25 has one end (outside in the longitudinal direction X) continuous with the central portion in the up-down direction Z of the first side wall portion 24b, and the other end (inside in the longitudinal direction X) continuous with the outer side portion 23e of the plug-side power supply terminal 23.

The header-side holding metal fitting 24 further includes a pair of side pieces (second side wall portions) 24c extending from one end (outer side) of the lower wall portion 24a in the longitudinal direction X toward the plate-like wall portion 21 a. The side piece 24c is provided to extend along the outer surface 21m of the short-side direction wall portion 21f, and is formed to have a tip end protruding slightly beyond the outer surface 21j of the plate-like wall portion 21 a. The front end of the side piece 24c is also a fixing portion 24d to be fixed to the circuit pattern of the second circuit board 40 by solder.

As described above, in the present embodiment, the plug-side holding metal fitting 24 is fixed to the circuit pattern of the second circuit board 40 by the four fixing portions 24d, and fixing portions are formed in three directions (one end in the longitudinal direction X and both ends in the width direction Y). The integrated plug-side power supply terminal 23 and plug-side holding metal fitting 24 are fixed to the circuit pattern of the second circuit board 40 by four fixing portions 24d and a root portion 22 a.

Further, gaps are formed between the fixing portions (four fixing portions 24d and the root portion 23 f) and the plug housing 21. The gap has a function as a release portion of solder at the time of soldering the fixing portion and a function as a heat radiation portion for suppressing the temperature of the header housing 21 from becoming excessively high.

In the present embodiment, the pair of side sheets 24c extend from both ends of the lower wall portion 24a in the width direction (short side direction) Y, and a gap 24e having a notch shape is formed between the pair of side sheets 24c (the central portion in the width direction Y).

Further, in the present embodiment, a gap 24f having a notch shape is also formed between the first side wall portion 24b and the side piece 24c (corner portion of the header housing 21).

The plug-side power supply terminal 23 and the plug-side holding metal fitting 24 are insert molded and attached to the plug housing 21 so as to be embedded in the engagement groove portions 21r formed at both end portions of the plug housing 21 in the longitudinal direction X.

At this time, the resin is also allowed to enter the gaps 24e and 24f in the form of notches, and the gaps between the plug-side power supply terminal 23 and the plug-side holding metal fitting 24. In this way, the fixing strength of the plug-side power supply terminal 23 and the plug-side holding metal fitting 24 to the plug housing 21 is improved.

In the present embodiment, the integrated plug-side power supply terminal 23 and plug-side holding metal fitting 24 are disposed in the plug housing 21 by insert molding, but may be disposed in the plug housing 21 by press-fitting.

Next, the structure of the socket 30 used in the connector 10 will be described with reference to fig. 11 to 22.

As described above, the socket 30 includes the socket housing 31. In the present embodiment, the socket housing 31 is molded of an insulating synthetic resin and has a rectangular (oblong) shape as a whole in a plan view (see fig. 11 to 16).

A metal socket-side signal terminal 32 and a metal socket-side power terminal 33 are disposed in the socket housing 31. The socket-side signal terminal 32 is a terminal for transmitting a signal by being electrically connected to a signal line. On the other hand, the socket-side power supply terminal 33 is a terminal for supplying power by being electrically connected to a power line.

Further, in the present embodiment, the socket-side signal terminals 32 and the socket-side power terminals 33 are arranged in a row along the longitudinal direction X of the socket housing 31.

Specifically, a plurality of socket-side signal terminals 32 are provided side by side at a predetermined pitch along one long side of the socket housing 31. The socket-side signal terminal group (first socket terminal group) G4 is composed of a plurality of socket-side signal terminals 32 arranged side by side on one side in the width direction (short side direction) Y of the socket housing 31.

Further, along one long side of the socket housing 31, one socket-side power supply terminal 33 is provided so as to be separated from one socket-side signal terminal group G4. The socket-side terminal group G2 is constituted by one socket-side signal terminal group G4 and one socket-side power supply terminal 33 which are arranged side by side on one side in the width direction (short-side direction) Y of the socket housing 31.

A plurality of socket-side signal terminals 32 are also provided side by side at a predetermined pitch along the other long side of the socket housing 31. The socket-side signal terminal group G4 is constituted by a plurality of socket-side signal terminals 32 arranged side by side on the other side in the width direction (short-side direction) Y of the socket housing 31.

Further, along the other long side of the socket housing 31, one socket-side power supply terminal 33 is provided so as to be separated from one socket-side signal terminal group G4. The socket-side terminal group G2 is constituted by one socket-side signal terminal group G4 and one socket-side power supply terminal 33 which are arranged side by side on the other side in the width direction (short-side direction) Y of the socket housing 31.

As described above, in the present embodiment, two (multiple) rows of socket-side terminal groups G2 are arranged in the socket housing 31, and the socket-side terminal groups G2 include the socket-side signal terminal group G4 and the socket-side power supply terminal 33 arranged along the longitudinal direction X of the socket housing 31.

In the present embodiment, the socket-side power supply terminal 33 is arranged on the side of the socket housing 31 in the longitudinal direction X in the socket-side terminal group G2 formed on the side of the socket housing 31 in the width direction (short side direction) Y. In the socket-side terminal group G2 formed on the other side in the width direction (short side direction) Y of the socket housing 31, the socket-side power supply terminal 33 is arranged on the other side in the long side direction X of the socket housing 31.

As described above, in the present embodiment, the socket-side power supply terminals 33 are disposed only on one side in the longitudinal direction X of the socket housing 31 and on one side in the width direction (short side direction) Y, and on the other side in the longitudinal direction X of the socket housing 31 and on the other side in the width direction (short side direction) Y.

In other words, only two socket-side power supply terminals 33 are arranged in the socket housing 31, and the two socket-side power supply terminals 33 are arranged in the diagonal portions of the rectangular (oblong) socket housing 31.

Further, in the present embodiment, the socket-side signal terminal group G4 on one long side and the socket-side signal terminal group G4 on the other long side are formed in a state of being shifted in the long-side direction X of the socket housing 31.

Specifically, the socket-side signal terminals 32 are arranged such that one socket-side signal terminal group G4 is shifted by one pitch from the other socket-side signal terminal group G4 in the longitudinal direction X of the socket housing 31.

With this configuration, the socket-side signal terminals 32 disposed at one end of the one socket-side signal terminal group G4 in the X direction and the socket-side signal terminals 32 disposed at the other end of the other socket-side signal terminal group G4 in the X direction can be disposed so as to face each other in the Y direction, except for the socket-side signal terminals 32.

In the present embodiment, the socket-side power supply terminal 33 constituting the other socket-side terminal group G2 is arranged so as to overlap the socket-side signal terminal 32 arranged at one end of the one socket-side signal terminal group G4 in the X direction in the Y direction.

The socket-side power supply terminal 33 constituting one socket-side terminal group G2 is arranged so as to overlap with the socket-side signal terminal 32 arranged at the other end of the other socket-side signal terminal group G4 in the X direction in the Y direction.

The socket-side signal terminal 32 and the socket-side power terminal 33 are disposed in the socket housing 31 so as to be in contact with the corresponding plug-side signal terminal 22 and plug-side power terminal 23, respectively, when the plug 20 and the socket 30 are fitted.

Further, in the present embodiment, metal socket-side holding fittings 34 are disposed at both ends (outside in the longitudinal direction X of the socket-side terminal group G2) in the longitudinal direction X of the socket housing 31. The socket-side holding fitting 34 is used to increase the strength of the socket housing 31, and the fixing portion provided in the socket-side holding fitting 34 is attached and fixed to the first circuit board 60.

Next, the structure of the socket housing 31 will be described with reference to fig. 14 to 16.

The socket housing 31 is formed into a substantially box shape with one side (upper side in fig. 14) opening by a plate-like wall portion 31a and a peripheral wall portion 31b formed continuously into a substantially rectangular annular shape along a peripheral edge portion thereof. Further, in the present embodiment, a substantially rectangular island portion 31c is formed at a predetermined interval from the peripheral wall portion 31b in the central portion of the plate-like wall portion 31 a. A substantially frame-shaped fitting groove 31d for fitting the peripheral wall portion 21b of the header 20 is formed between the peripheral wall portion 31b and the island portion 31c. The island 31c is fitted in the recess 21c.

Further, since the short-side wall portion 21f and the long-side wall portion 21e are fitted in the fitting groove portion 31d, the fitting groove portion 31d is formed so that both end portions in the short-side direction Y are slightly wide.

Further, in the present embodiment, a tapered portion 31e is formed at the inner peripheral side upper end of the peripheral wall portion 31b, and the tapered portion 31e is inclined so as to be located downward (toward the plate-like wall portion 31a side) as it goes inward. The tapered portions 31e are formed at both longitudinal ends of the longitudinal wall portion 31h of the peripheral wall portion 31b and at the short-side wall portion 31i of the peripheral wall portion 31 b.

The tapered portion 31e is also formed in the peripheral wall portion 31b between the adjacent socket-side signal terminal 32 and socket-side power supply terminal 33. A tapered portion 31e is also formed in the peripheral wall portion 31b between the adjacent socket-side power supply terminal 33 and socket-side holding metal fitting 34. As described above, in the present embodiment, the tapered portion 31e is formed over substantially the entire circumference of the peripheral wall portion 31 b.

In the present embodiment, the peripheral wall portion 31b includes: a pair of long-side wall portions 31h opposed to each other in the width direction (short-side direction) Y, and a pair of short-side wall portions 31i opposed to each other in the long-side direction X.

The length of the short-side direction wall portion 31i in the width direction Y is formed to be substantially equal to the distance between the two opposed long-side direction wall portions 31h (the distance from the outer surface 31s of one long-side direction wall portion 31h to the outer surface 31s of the other long-side direction wall portion 31 h). Further, the length of the longitudinal direction X of the longitudinal direction wall portion 31h is formed to be substantially equal to the distance between the two opposed short side direction wall portions 31i (the distance from the outer surface 31t of one short side direction wall portion 31i to the outer surface 31t of the other short side direction wall portion 31 i).

As described above, in the present embodiment, the socket housing 31 is formed to have a substantially rectangular shape as viewed in a plan view. Therefore, the outer surface 31s of the long-side wall portion 31h and the outer surface 31t of the short-side wall portion 31i become the outer surface 31p of the peripheral wall portion 31b, and the inner surface 31u of the long-side wall portion 31h and the inner surface 31v of the short-side wall portion 31j become the inner surface 31r of the peripheral wall portion 31 b.

In the present embodiment, the socket housing 31 has a socket-side signal terminal housing portion 31f that houses the socket-side signal terminal 32 and is formed to penetrate the plate-like wall portion 31a (see fig. 14 to 16). Further, in the socket housing 31, a socket-side power-supply-terminal accommodation portion 31g accommodating the socket-side power-supply terminal 33 is formed so as to penetrate the plate-like wall portion 31a.

The socket-side signal terminal accommodation portion 31f is formed by forming the socket-side signal terminal accommodation recess 31j in the longitudinal direction wall portion 31h so as to communicate with the fitting groove portion 31d, and forming the socket-side signal terminal accommodation recess 31m in the island portion 31c so as to communicate with the fitting groove portion 31 d.

The socket-side power supply terminal accommodation portion 31g is formed by forming the socket-side power supply terminal accommodation recess 31k in the longitudinal wall portion 31h so as to communicate with the fitting groove portion 31d, and forming the socket-side power supply terminal accommodation recess 31n in the island portion 31c so as to communicate with the fitting groove portion 31 d.

The socket-side signal terminal 32 and the socket-side power terminal 33 are respectively press-fitted into the socket-side signal terminal accommodating portion 31f and the socket-side power terminal accommodating portion 31g from the lower surface side of the socket housing 31.

Next, the structure of the socket-side signal terminal 32 will be described with reference to fig. 17 and 18.

The socket-side signal terminal 32 is made of metal and is an electrical conductor. The socket-side signal terminal 32 includes a root portion (first socket-side terminal-side fixing portion) 32a protruding from the side surface of the socket housing 31. The root portion 32a is a portion fixed to the circuit pattern of the first circuit board 60 by solder. Further, the lower surface of the root portion 32a extends along the main surface M of the first circuit substrate 60 and is located in the same plane as the bottom surface of the socket housing 31 (the lower side surface of the plate-like wall portion 31 a).

The socket-side signal terminal 32 includes a rising portion 32b, and the rising portion 32b rises from the root portion 32a and extends away from the first circuit board 60. The rising portion 32b is bent from the root portion 32a and enters the socket-side signal terminal accommodating recess 31j, and extends along the inner surface 31u of the longitudinal wall portion 31 h.

The socket-side signal terminal 32 includes an inverted U-shaped portion 32c, and one end of the inverted U-shaped portion 32c is continuous with the upper end of the rising portion 32 b. The inverted U-shaped portion 32c has a shape in which the letter "U" is arranged upside down. The inverted U-shaped portion 32c has a front end surface 32n and inclined surfaces 32p provided continuously on both sides of the front end surface 32n in the longitudinal direction X, and is formed in a protruding shape protruding in a substantially trapezoidal shape when viewed in a horizontal cross section.

The socket-side signal terminal 32 includes a locking portion 32d continuous with the other end of the inverted U-shaped portion 32 c. In the present embodiment, the locking portion 32d is formed from one end to the other end in the longitudinal direction X of the socket housing 31 in the socket-side signal terminal 32. That is, the stepped locking portion 32d is formed over the entire width direction of the socket-side signal terminal 32.

As described above, when the plug-side signal terminal 22 is pulled out from the socket-side signal terminal 32, the locking portion 32d functions as a portion that suppresses movement of the locked portion 22e. That is, the locking portion 32d of the socket-side signal terminal 32 abuts against the locked portion 22e of the header-side signal terminal 22, and the locked portion 22e can be locked. The locking portion 32d of the socket-side signal terminal 32 and the locked portion 22e of the header-side signal terminal 22 constitute a locking mechanism that can be unlocked by applying an external force equal to or greater than a predetermined value.

The locking portion 32d may be produced by rolling a base material having a locally different thickness of the socket-side signal terminal 32, or may be produced by bending a base material of the socket-side signal terminal 32 in the thickness direction.

The socket-side signal terminal 32 has a descending portion 32e, and the descending portion 32e is continuous with the locking portion 32d and extends substantially parallel to the rising portion 32 b.

The socket-side signal terminal 32 includes an inclined portion 32f continuous with the lower end of the lowered portion 32e. The socket-side signal terminal 32 may have an arc-shaped portion in addition to the inclined portion 32f.

As shown in fig. 23 and 24, the socket-side signal terminal 32 includes an opposing portion 32z continuous with the inclined portion 32f. The opposing portion 32z includes a flat portion 32g, a first inclined portion 32h, an arcuate portion 32i, a second inclined portion 32j, an arcuate projection 32k, and a distal end portion 32m, which will be described later. Specifically, the opposing portion 32z is as follows.

The opposing portion 32z includes a flat portion 32g continuous with the lower end of the inclined portion 32f. As shown in fig. 23, the flat portion 32g extends along the main surface M of the first circuit substrate 60 so as to be away from the depressed portion 32e. However, the flat portion 32g need not be parallel to the main surface M. The flat portion 32g is provided to increase the spring length of a spring portion described later.

As shown in fig. 23, the opposing portion 32z includes a first inclined portion 32h, and the first inclined portion 32h is continuous with the flat portion 32g and extends in a direction inclined with respect to the main surface M of the first circuit substrate 60. The first inclined portion 32h extends so as to be away from the lowered portion 32e as it is away from the first circuit substrate 60. The first inclined portion 32h is continuous with the arcuate portion 32 i. The arcuate portion 32i is a curved portion protruding so as to be away from the lowered portion 32e. The arcuate portion 32i is continuous with the second inclined portion 32j extending in a direction inclined with respect to the main surface M of the first circuit substrate 60. The second inclined portion 32j extends so as to approach the lowered portion 32e as being away from the first circuit substrate 60. Therefore, the second inclined portion 32j is positioned above the first inclined portion 32 h.

As shown in fig. 23, the opposing portion 32z includes an arc-shaped protrusion 32k, and one end of the arc-shaped protrusion 32k is continuous with the upper end of the second inclined portion 32 j. The arcuate projection 32k has: the front end surface 32r and the inclined surfaces 32s continuous to both sides of the front end surface 32r in the longitudinal direction X are formed in a protruding shape protruding in a substantially trapezoidal shape when viewed in a horizontal cross section.

As shown in fig. 23, the arcuate projection 32k is fitted into the recess 22c of the header-side signal terminal 22. The other end of the arcuate projection 32k is continuous with the tip end portion 32 m. The tip portion 32m extends substantially parallel to the second inclined portion 32 j. As is clear from fig. 23 and 24, the opposing portion 32z (32 g, 32h, 32i, 32j, 32k, 32 m) is continuous with the lower end of the inclined portion 32f, and opposes the descending portion 32e as a whole.

In the present embodiment, when the header 20 is fitted to the socket 30, as shown in fig. 24, the header-side signal terminal 22 is inserted between the inverted U-shaped portion 32c and the arcuate projection portion 32 k. At this time, the descending portion 32e, the inclined portion 32f, the flat portion 32g, the first inclined portion 32h, the arcuate portion 32i, the second inclined portion 32j, the arcuate projection 32k, and the tip portion 32m are integrated and function as a spring portion. When the protruding portion of the header-side signal terminal 22 is inserted into the recessed portion of the socket-side signal terminal 32, the spring portions (32 e, 32f, 32g, 32h, 32i, 32j, 32k, 32 m) are elastically deformed. This increases the distance between the two portions of the descending portion 32e and the inverted U-shaped portion 32c and the arcuate projection 32 k. At this time, the engaged portion 22e of the header-side signal terminal 22 is inserted below the engaging portion 32d of the socket-side signal terminal 32. Thereby, the arcuate projection 32k of the socket-side signal terminal 32 is fitted into the recess 22c of the header-side signal terminal 22.

In a state where the plug-side signal terminal 22 and the socket-side signal terminal 32 are fitted, restoring force is generated in the elastically deformed spring portion. The arcuate projection 32k presses the header-side signal terminal 22 against the lowered portion 32e and the inverted U-shaped portion 32c, respectively, by the restoring force. Thereby, the plug-side signal terminal 22 is sandwiched by the socket-side signal terminal 32. At this time, the header-side signal terminal 22 is in contact with the inverted U-shaped portion 32c, the lowered portion 32e, and the arcuate projection 32k of the socket-side signal terminal 32, respectively.

Specifically, as shown in fig. 23 and 24, the tip end 22d of the header-side signal terminal 22 is in contact with the lowered portion 32e of the socket-side signal terminal 32. That is, the contact portion (first socket terminal side contact portion) R1 of the socket side signal terminal 32 and the contact portion (first plug terminal side contact portion) R1 of the plug side signal terminal 22 are in contact with each other.

The concave portion 22c of the header-side signal terminal 22 is in contact with the arcuate projection 32k of the socket-side signal terminal 32. That is, the contact portion (first socket terminal side contact portion) R2 of the socket side signal terminal 32 and the contact portion (first plug terminal side contact portion) R2 of the plug side signal terminal 22 are in contact with each other.

In this way, the plug-side signal terminal 22 and the socket-side signal terminal 32 are in contact with each other through a plurality of contacts (two contact portions, namely, the contact portion R1 and the contact portion R2) separated in the width direction Y. Therefore, the reliability of the electrical connection between the header-side signal terminal 22 and the socket-side signal terminal 32 is high.

Further, in the present embodiment, the concave portion 22c is formed in the contact portion R2 of the plug-side signal terminal 22, which is one of the contact portion R2 of the socket-side signal terminal 32 and the contact portion R2 of the plug-side signal terminal 22 that are in contact with each other. The contact portion R2 of the socket-side signal terminal 32, which is the other contact portion, contacts both ends of the recess 22c in the longitudinal direction X of the socket housing 31.

Specifically, when the arcuate projection 32k of the socket-side signal terminal 32 is fitted into the recess 22c, the boundary portion between the tip end surface 32r and the inclined surface 32s of the arcuate projection 32k is in contact with the inclined surface 22 h. As described above, in the present embodiment, the contact portion R2 of the socket-side signal terminal 32 contacts the contact portion R2 of the header-side signal terminal 22 at two points.

In addition, due to the elastic deformation of the spring portion, the boundary portion between the flat portion 32g and the first inclined portion 32h may be in contact with the first circuit board 60 through the contact portion R5 in addition to the contact portions R1 and R2.

As described above, the plug-side signal terminal 22 and the socket-side signal terminal 32 of the present embodiment are in contact with each other through the plurality of contacts separated in the width direction Y. However, the plug-side signal terminal and the socket-side signal terminal of the present disclosure may be in contact with only one contact of the opposing portion of the socket-side signal terminal through the inner surface of the plug-side signal terminal, for example.

The spring portions (32 e, 32f, 32g, 32h, 32i, 32j, 32k, 32 m) include U-shaped portions (32 e, 32f, 32g, 32h, 32i, 32 j) and free end portions (32 k, 32 m) that are continuous with one ends (32 j side) of the U-shaped portions (32 e, 32f, 32g, 32h, 32i, 32 j). Further, the arcuate projections 32k at the free end portions (32 k, 32 m) are provided with contact portions R2 of the socket-side signal terminals 32.

Thus, the socket-side signal terminal 32 has U-shaped portions (32 e, 32f, 32g, 32h, 32i, 32 j), and free ends (32 k, 32 m) provided with the contact portions R2 are provided continuously with one ends (32 j side) of the U-shaped portions (32 e, 32f, 32g, 32h, 32i, 32 j).

The socket-side signal terminal 32 can be formed by bending a strip-shaped metal material having a predetermined thickness.

The socket-side signal terminal 32 is inserted (press-fitted) into the socket-side signal terminal accommodating portion 31f from the lower side surface side (lower side in fig. 14) of the socket housing 31 when the socket 30 is assembled, and is thereby attached to the socket housing 31.

The socket-side signal terminals 32 may be insert-molded into the socket housing 31, or the socket-side signal terminals 32 may be attached to the socket housing 31.

Next, the structure of the socket-side power supply terminal 33 will be described with reference to fig. 19 and 20.

The socket-side power supply terminal 33 is made of metal by molding and is an electric conductor. The socket-side power supply terminal 33 includes a root portion (second socket-side terminal-side fixing portion) 33a protruding from a side surface of the socket housing 31. The root portion 33a is a portion fixed to the circuit pattern of the first circuit board 60 by solder. Further, the lower surface of the root portion 33a extends along the main surface M of the first circuit substrate 60 and is positioned in the same plane as the bottom surface of the socket housing 31 (the lower side surface of the plate-like wall portion 31 a).

The socket-side power supply terminal 33 includes a rising portion 33b, and the rising portion 33b rises from the root portion 33a and extends away from the first circuit board 60. The rising portion 33b is bent from the root portion 33a and enters the socket-side power supply terminal accommodating recess 31k, and extends along the inner surface 31u of the longitudinal wall portion 31 h.

The socket-side power supply terminal 33 includes an inverted U-shaped portion 33c having one end continuous with the upper end of the rising portion 33 b. The inverted U-shaped portion 33c has a shape in which the letter "U" is arranged upside down. The inverted U-shaped portion 33c includes: the front end surface 33r and the inclined surfaces 33s provided continuously to both sides of the front end surface 33r in the longitudinal direction X are formed in a protruding shape protruding in a substantially trapezoidal shape when viewed in a horizontal cross section.

The socket-side power supply terminal 33 includes a locking portion 33d continuous with the other end of the inverted U-shaped portion 33c. As described above, when the plug-side power supply terminal 23 is pulled out from the socket-side power supply terminal 33, the locking portion 33d functions as a portion that suppresses movement of the locked portion 23d. That is, the locking portion 33d of the socket-side power supply terminal 33 abuts against the locked portion 23d of the header-side power supply terminal 23, and the locked portion 23d can be locked. The locking portion 33d of the socket-side power supply terminal 33 and the locked portion 23d of the plug-side power supply terminal 23 constitute a locking mechanism that can be unlocked by applying an external force equal to or greater than a predetermined value.

The locking portion 33d may be produced by rolling a base material having a locally different thickness of the socket-side power supply terminal 33, or may be produced by bending a base material of the socket-side power supply terminal 33 in the thickness direction.

The socket-side power supply terminal 33 has a descent portion 33e, and the descent portion 33e is continuous with the locking portion 33d and extends substantially parallel to the rising portion 33 b.

The socket-side power supply terminal 33 includes an inclined portion 33f continuous with the lower end of the descent portion 33e. The socket-side power supply terminal 33 may have an arc-shaped portion in addition to the inclined portion 33f.

As shown in fig. 25 and 26, the socket-side power supply terminal 33 includes an opposing portion 33z continuous with the inclined portion 33f. The opposing portion 33z includes a flat portion 33g, a first inclined portion 33h, an arcuate portion 33i, a second inclined portion 33j, an arcuate projection 33k, and a distal end portion 33m, which will be described later. Specifically, the opposing portion 33z is as follows.

The opposing portion 33z includes a flat portion 33g continuous with the lower end of the inclined portion 33f. As shown in fig. 25, the flat portion 33g extends along the main surface M of the first circuit substrate 60 so as to be away from the depressed portion 33e. However, the flat portion 33g need not be parallel to the main surface M. The flat portion 33g is provided to increase the spring length of a spring portion described later.

As shown in fig. 25, the opposing portion 33z includes a first inclined portion 33h, and the first inclined portion 33h is continuous with the flat portion 33g and extends in a direction inclined with respect to the main surface M of the first circuit board 60. The first inclined portion 33h extends so as to be away from the lowered portion 33e as it is away from the first circuit substrate 60. The first inclined portion 33h is continuous with the arcuate portion 33 i. The arcuate portion 33i is a curved portion protruding so as to be away from the lowered portion 33e. The arcuate portion 33i is continuous with a second inclined portion 33j extending in a direction inclined with respect to the main surface M of the first circuit substrate 60. The second inclined portion 33j extends so as to approach the lowered portion 33e as being away from the first circuit substrate 60. Therefore, the second inclined portion 33j is positioned above the first inclined portion 33 h.

As shown in fig. 25, the opposing portion 33z includes an arc-shaped projection 33k having one end continuous with the upper end of the second inclined portion 33 j. The arcuate projection 33k has: the front end surface 33v and the inclined surfaces 33w provided continuously to both sides of the front end surface 33v in the longitudinal direction X are formed in a protruding shape protruding in a substantially trapezoidal shape when viewed in a horizontal cross section.

As shown in fig. 25, the arcuate projection 33k is fitted into the recess 23b of the plug-side power supply terminal 23. The other end of the arc-shaped projection 33k is continuous with the tip end 33 m. The tip portion 33m extends substantially parallel to the second inclined portion 33 j. As is clear from fig. 25 and 26, the opposing portions 33z (33 g, 33h, 33i, 33j, 33k, 33 m) are continuous with the lower ends of the inclined portions 33f, and are opposing the descending portion 33e as a whole.

As described above, in the present embodiment, the side surface shape of the socket-side signal terminal 32 and the side surface shape of the socket-side power supply terminal 33 are substantially the same shape (see fig. 18 a and 20 a).

In the present embodiment, when the plug 20 is fitted to the socket 30, as shown in fig. 26, the plug-side power supply terminal 23 is inserted between the inverted U-shaped portion 33c and the arcuate projection portion 33k, as is the case with the socket-side signal terminal 32. At this time, the descending portion 33e, the inclined portion 33f, the flat portion 33g, the first inclined portion 33h, the arcuate portion 33i, the second inclined portion 33j, the arcuate projection 33k, and the tip portion 33m are integrated and function as a spring portion. When the protruding portion of the plug-side power supply terminal 23 is inserted into the recessed portion of the socket-side power supply terminal 33, the spring portions (33 e, 33f, 33g, 33h, 33i, 33j, 33k, 33 m) are elastically deformed.

In the present embodiment, the width (width along the longitudinal direction X) of the portion from the inclined portion 33f to the distal end portion 33m is smaller than the width (width along the longitudinal direction X) of the rising portion 33b, the inverted U-shaped portion 33c, the locking portion 33d, and the descending portion 33 e. Therefore, the portions from the inclined portion 33f to the distal end portion 33m are particularly easily elastically deformed for the spring portions (33 e, 33f, 33g, 33h, 33i, 33j, 33k, 33 m).

When the spring portions (33 e, 33f, 33g, 33h, 33i, 33j, 33k, 33 m) elastically deform, the distance between the arc-shaped protrusion portion 33k and the two portions of the descending portion 33e and the inverted U-shaped portion 33c increases. At this time, the engaged portion 23d of the plug-side power supply terminal 23 is inserted below the engaged portion 33d of the socket-side power supply terminal 33. Thereby, the arcuate projection 33k of the socket-side power supply terminal 33 is fitted into the recess 23b of the plug-side power supply terminal 23.

In a state where the plug-side power supply terminal 23 is fitted to the socket-side power supply terminal 33, a restoring force is generated in the elastically deformed spring portion. The arcuate projection 33k presses the plug-side power supply terminal 23 against the descent portion 33e and the inverted U-shaped portion 33c, respectively, by the restoring force. Thereby, the plug-side power supply terminal 23 is sandwiched between the socket-side power supply terminals 33. At this time, the plug-side power supply terminal 23 is in contact with the inverted U-shaped portion 33c, the lowered portion 33e, and the arcuate projection 33k of the socket-side power supply terminal 33, respectively.

Specifically, as shown in fig. 25 and 26, the tip end portion 23c of the plug-side power supply terminal 23 is in contact with the lowered portion 33e of the socket-side power supply terminal 33. That is, the contact portion (second socket terminal side contact portion) R3 of the socket side power supply terminal 33 and the contact portion (second plug terminal side contact portion) R3 of the plug side power supply terminal 23 are in contact with each other.

The concave portion 23b of the plug-side power supply terminal 23 is in contact with the arcuate projection 33k of the socket-side power supply terminal 33. That is, the contact portion (second socket terminal side contact portion) R4 of the socket side power supply terminal 33 and the contact portion (second plug terminal side contact portion) R4 of the plug side power supply terminal 23 are in contact with each other.

In this way, the plug-side power supply terminal 23 and the socket-side power supply terminal 33 are in contact with each other through a plurality of contacts (two contact portions, namely, the contact portion R3 and the contact portion R4) separated in the width direction Y. Therefore, the reliability of the electrical connection between the plug-side power supply terminal 23 and the socket-side power supply terminal 33 is high.

Further, regarding the contact portions R3 and R4 provided at two places of the socket-side power supply terminal 33, the contact portion R3 is located closer to the root portion (second socket-side terminal-side fixing portion) 33a than the contact portion R4.

In the present embodiment, the cross-sectional area of the contact portion R3 located on one side of the root portion (second socket terminal side fixing portion) 33a among the contact portion R3 and the contact portion R4 is larger than the cross-sectional area of the contact portion R4 located on the other side. This structure can be obtained by appropriately setting the widths (widths along the longitudinal direction X) and thicknesses (plate thicknesses) of the contact portions R3 and R4 of the socket-side power supply terminal 33, for example.

In the present embodiment, the width of the contact portion R3 (the width along the longitudinal direction X) of the socket-side power supply terminal 33 is wider than the width of the contact portion R4 (the width along the longitudinal direction X).

In the present embodiment, the root portion 33a is formed so that the width along the longitudinal direction X of the socket housing 31 is smaller than the width along the longitudinal direction X of the rising portion 33 b. The root portion 33a is provided continuously with a portion (a side distant from the socket-side signal terminal 32 adjacent in the X direction) on the outer side in the longitudinal direction X of the rising portion 33 b.

Further, in a state where the socket-side signal terminal 32 and the socket-side power supply terminal 33 are disposed in the socket housing 31, the root portion 33a is offset in a direction away from the root portion (first socket-side terminal-side fixing portion) 32a with respect to the contact portion R3 and the contact portion R4.

That is, the root portion (second socket terminal side fixing portion) 33a is provided continuously with the rising portion 33b in a state protruding outward in the longitudinal direction X than the rising portion 33 b.

With this configuration, in a state where the socket-side signal terminal 32 and the socket-side power supply terminal 33 are disposed in the socket housing 31, the distance between the root portion (first socket-side terminal-side fixing portion) 32a and the root portion (second socket-side terminal-side fixing portion) 33a is greater than the distance between the contact portions (first socket-side terminal-side contact portions) R1 and R2 of the socket-side signal terminal 32 and the contact portions (second socket-side terminal-side contact portions) R3 and R4 of the socket-side power supply terminal 33.

In this way, the insulation distance between the socket-side power supply terminal (second socket terminal) 33 and the socket-side signal terminal (first socket terminal) 32 (the distance between the root portion 33a and the root portion 32a adjacent to each other in the X direction) can be lengthened.

Further, the insulation distance may be increased by reducing the width of the root portion (second socket terminal side fixing portion) 33a by making the root portion (second socket terminal side fixing portion) 33a not protrude outward in the longitudinal direction X than the rising portion 33 b.

As described above, the side surface shape of the socket-side signal terminal 32 and the side surface shape of the socket-side power supply terminal 33 are substantially the same shape.

Further, the socket-side signal terminals 32 and the socket-side power terminals 33 are arranged in a row along the longitudinal direction X of the socket housing 31.

The socket-side power supply terminal 33 is formed to have a width along the longitudinal direction X of the socket housing 31 that is wider than the width along the longitudinal direction X of the socket-side signal terminal 32.

That is, in the present embodiment, the socket-side signal terminal 32 having a width along the longitudinal direction X of the socket housing 31 smaller than the socket-side power supply terminal 33 is provided. In the present embodiment, all of the socket-side signal terminals 32 are narrower than the socket-side power supply terminals 33 with respect to the width along the longitudinal direction X of the socket housing 31.

Further, in the present embodiment, the thickness (plate thickness) of the socket-side power supply terminal 33 is made thinner than the thickness (plate thickness) of the socket-side signal terminal 32.

The locking portion 33d is formed from one end to the other end in the longitudinal direction X of the socket housing 31 in the socket-side power supply terminal 33. That is, the stepped locking portion 33d is formed over the entire wide socket-side power supply terminal 33 in the width direction. With this configuration, the locking force by the engaged portion 23d of the plug-side power supply terminal 23 and the engaging portion 33d of the socket-side power supply terminal 33 can be increased. Further, even when the plug 20 and the socket 30 are repeatedly inserted and removed, the locking portion 33d is less likely to be worn, and thus a longer life of the product can be achieved.

In the present embodiment, the spring portions (33 e, 33f, 33g, 33h, 33i, 33j, 33k, 33 m) include U-shaped portions (33 e, 33f, 33g, 33h, 33i, 33 j) and free end portions (33 k, 33 m) continuous with one ends (33 j side) of the U-shaped portions (33 e, 33f, 33g, 33h, 33i, 33 j). Further, the arc-shaped protruding portions 33k of the free end portions (33 k, 33 m) are provided with the contact portions R4 of the socket-side power supply terminals 33.

Thus, the socket-side power supply terminal 33 has U-shaped portions (33 e, 33f, 33g, 33h, 33i, 33 j), and free ends (33 k, 33 m) provided with the contact portions R4 are provided continuously with one ends (33 j side) of the U-shaped portions (33 e, 33f, 33g, 33h, 33i, 33 j).

Further, in the present embodiment, the concave portion 23b is formed in the contact portion R4 of the plug-side power supply terminal 23, which is one of the contact portion R4 of the socket-side power supply terminal 33 and the contact portion R4 of the plug-side power supply terminal 23 that are in contact with each other. The contact portion R4 of the socket-side power supply terminal 33 as the other contact portion contacts both ends of the recess 23b in the longitudinal direction X of the socket housing 31.

Specifically, when the arcuate projection 33k of the socket-side power supply terminal 33 is fitted into the recess 23b, the boundary portion between the tip end surface 33v of the arcuate projection 33k and the inclined surface 33w is in contact with the inclined surface 23 h. As described above, in the present embodiment, the contact portion R4 of the socket-side power supply terminal 33 contacts the contact portion R4 of the plug-side power supply terminal 23 at two points.

In addition, due to the elastic deformation of the spring portion, the boundary portion between the flat portion 33g and the first inclined portion 33h may be in contact with the first circuit board 60 through the contact portion R5 in addition to the contact portions R3 and R4.

As described above, the plug-side power supply terminal 23 and the socket-side power supply terminal 33 of the present embodiment are in contact with each other through a plurality of contacts separated in the width direction Y. However, the plug-side power supply terminal and the socket-side power supply terminal of the present disclosure may be in contact with only one contact of the opposing portion of the socket-side power supply terminal through the inner surface of the plug-side power supply terminal, for example.

The socket-side power supply terminal 33 can be formed by bending a strip-shaped metal material having a predetermined thickness.

The socket-side power supply terminal 33 is attached to the socket housing 31 by inserting (press-fitting) the lower side surface side (lower side in fig. 15) of the socket housing 31 into the socket-side power supply terminal accommodating portion 31g when the socket 30 is assembled.

The socket-side power supply terminal 33 may be insert-molded in the socket housing 31 or the like, and the socket-side power supply terminal 33 may be attached to the socket housing 31.

Next, the structure of the socket-side holding fitting 34 will be described with reference to fig. 21 and 22.

The socket-side holding fitting 34 is made of metal by molding and is an electric conductor. The socket-side holding metal fitting 34 can be formed by bending a holding metal fitting plate formed by press forming a metal plate having a predetermined thickness, for example.

In the present embodiment, the socket-side holding metal fitting 34 includes a first inverted U-shaped portion (first U-shaped portion) 35 extending in the width direction (short side direction: one direction) Y.

The socket-side holding metal fitting 34 includes a second inverted U-shaped portion (second U-shaped portion) 36, and the second inverted U-shaped portion 36 extends in the longitudinal direction (direction intersecting one direction) X and is disposed on one side in the width direction Y of the first inverted U-shaped portion 35.

The socket-side holding metal fitting 34 further includes a third inverted U-shaped portion (third U-shaped portion) 37, and the third inverted U-shaped portion 37 extends in the longitudinal direction (direction intersecting one direction) X and is disposed on the other side in the width direction Y of the first inverted U-shaped portion 35.

In the present embodiment, the second inverted U-shaped portion 36 is disposed adjacent to the socket-side power supply terminal 33 in the longitudinal direction X, and the third inverted U-shaped portion 37 is disposed adjacent to the socket-side signal terminal 32 in the longitudinal direction X.

The first inverted U-shaped portion 35, the second inverted U-shaped portion 36, and the third inverted U-shaped portion 37 are disposed in a state of being separated from each other.

The first inverted U-shaped portion 35 includes a rising portion 35a disposed along the inner surface (inner surface 31v of the short-side direction wall portion 31 i) of the socket housing 31. The rising portion 35a rises from the joint portion between the plate-like wall portion 31a and the short-side direction wall portion 31i of the socket housing 31, and extends so as to be away from the first circuit board 60.

The first inverted U-shaped portion 35 includes an inclined portion 35b continuous with the upper end of the rising portion 35 a. The inclined portion 35b is inclined downward (toward the plate-like wall portion 31 a) as it is toward the inside, as is the case with the tapered portion 31e of the socket housing 31.

The first inverted U-shaped portion 35 includes an arc portion 35c continuous with the upper end of the inclined portion 35b. The arcuate portion 35c is a curved portion that protrudes so as to be away from the inclined portion 35b.

The first inverted U-shaped portion 35 includes a descending portion 35d, and the descending portion 35d is continuous with the arcuate portion 35c and extends substantially parallel to the rising portion 35 a. The descent portion 35d extends along the outer surface 31t of the short-side direction wall portion 31 i.

Further, the first inverted U-shaped portion 35 includes a first fixing portion 35e to be fixed to the circuit pattern of the first circuit board 60 by solder.

In the present embodiment, a part of the tip (lower end) of the descent portion 35d is slightly protruded from the outer surface 31w of the plate-like wall portion 31 a. The front end (lower end) of the depressed portion 35d slightly protruding from the outer surface 31w is set as a first fixing portion 35e to be fixed to the circuit pattern of the first circuit board 60 by solder.

In the present embodiment, the descending portion 35d is formed to have a width (length in the width direction Y) larger than (larger than) the width (length in the width direction Y) of the arcuate portion 35c. Further, first fixing portions 35e are formed at both ends and a central portion in the width direction Y of the descent portion 35 d.

Further, the distal ends of both end sides in the width direction Y of the descent portion 35d are formed to be curved in a shape extending along the XY plane (the main surface M of the first circuit substrate 60). That is, the first fixing portions 35e are formed on both end sides in the width direction Y of the descending portion 35d by projecting the front ends on both end sides in the width direction Y of the descending portion 35d to the outside in the X direction. On the other hand, the distal ends of the descending portion 35d on both end sides in the width direction Y are not formed in a curved shape, and the first fixing portion 35e formed at this position is fixed to the circuit pattern of the first circuit board 60 in a state where the distal ends are abutted against the main surface M of the first circuit board 60.

By providing the first fixing portions 35e at both ends and the center of the wide descending portion 35d in this way, the socket-side holding metal fitting 34 can be more firmly fixed to the first circuit board 60.

The second inverted U-shaped portion 36 includes a rising portion 36a arranged along the inner surface (inner surface 31U of the longitudinal wall portion 31 h) of the socket housing 31. The rising portion 36a rises from the joint portion of the plate-like wall portion 31a and the longitudinal wall portion 31h of the socket housing 31, and extends so as to be away from the first circuit board 60.

The second inverted U-shaped portion 36 includes an inclined portion 36b continuous with the upper end of the rising portion 36a. The inclined portion 36b is inclined downward (toward the plate-like wall portion 31 a) as it is toward the inside, as is the case with the tapered portion 31e of the socket housing 31.

The second inverted U-shaped portion 36 includes an arc portion 36c continuous with the upper end of the inclined portion 36 b. The arcuate portion 36c is a curved portion that protrudes so as to be away from the inclined portion 36 b.

The second inverted U-shaped portion 36 includes a descending portion 36d, and the descending portion 36d is continuous with the arcuate portion 36c and extends substantially parallel to the rising portion 36 a. The lowered portion 36d extends along the outer surface 31s of the longitudinal wall portion 31 h.

Further, the second inverted U-shaped portion 36 includes a second fixing portion 36e to be fixed to the circuit pattern of the first circuit board 60 by solder.

In the present embodiment, a part (the X-direction central portion) of the tip (lower end) of the descent portion 36d is made to protrude slightly beyond the outer surface 31w of the plate-like wall portion 31 a. The tip (lower end) of the lowered portion 36d slightly protruding from the outer surface 31w is set as a second fixing portion 36e to be fixed to the circuit pattern of the first circuit board 60 by solder.

In the present embodiment, the second fixing portion 36e is fixed to the circuit pattern of the first circuit board 60 in a state where the tip is abutted against the main surface M of the first circuit board 60.

The third reverse U-shaped portion 37 includes a rising portion 37a arranged along the inner surface (inner surface 31U of the longitudinal wall portion 31 h) of the socket housing 31. The rising portion 37a rises from the joint portion of the plate-like wall portion 31a and the longitudinal wall portion 31h of the socket housing 31, and extends so as to be away from the first circuit board 60.

The third inverted U-shaped portion 37 includes an inclined portion 37b continuous with the upper end of the rising portion 37 a. The inclined portion 37b is inclined downward (toward the plate-like wall portion 31 a) as it is toward the inside, as is the case with the tapered portion 31e of the socket housing 31.

The third inverted U-shaped portion 37 includes an arc-shaped portion 37c continuous with the upper end of the inclined portion 37b. The arcuate portion 37c is a curved portion that protrudes so as to be away from the inclined portion 37b.

The third inverted U-shaped portion 37 includes a descending portion 37d, and the descending portion 37d is continuous with the arcuate portion 37c and extends substantially parallel to the rising portion 37 a. The lowered portion 37d extends along the outer surface 31s of the longitudinal wall portion 31 h.

The third inverted U-shaped portion 37 further includes a third fixing portion 37e that is fixed to the circuit pattern of the first circuit board 60 by solder.

In the present embodiment, a part (the X-direction central portion) of the tip (lower end) of the descent portion 37d is made to protrude slightly beyond the outer surface 31w of the plate-like wall portion 31 a. The tip (lower end) of the lowered portion 37d slightly protruding from the outer surface 31w is set as a third fixing portion 37e to be fixed to the circuit pattern of the first circuit board 60 by solder.

In the present embodiment, the third fixing portion 37e is fixed to the circuit pattern of the first circuit board 60 in a state where the tip end abuts against the main surface M of the first circuit board 60.

As described above, in the present embodiment, the socket-side holding fitting 34 includes: a first fixing portion 35e formed in the vicinity of the first inverted U-shaped portion 35; a second fixing portion 36e formed in the vicinity of the second inverted U-shaped portion 36; and a third fixing portion 37e formed in the vicinity of the third inverted U-shaped portion 37.

The first fixing portion 35e is provided continuously with the first inverted U-shaped portion 35, the second fixing portion 36e is provided continuously with the second inverted U-shaped portion 36, and the third fixing portion 37e is provided continuously with the third inverted U-shaped portion 37.

Further, in the present embodiment, the side of the second inverted U-shaped portion 36 on which the second fixing portion 36e is not formed is provided continuously with the side of the first inverted U-shaped portion 35 on which the first fixing portion 35e is not provided continuously.

Specifically, the rising portion 36a of the second inverted U-shaped portion 36 and the rising portion 35a of the first inverted U-shaped portion 35 are continuously provided by the connecting portion 38.

The connecting portion 38 connects the outer side of the lower end of the rising portion 36a in the longitudinal direction X with the outer side of the lower end of the rising portion 35a in the width direction Y.

On the other hand, the side of the third inverted U-shaped portion 37 on which the third fixing portion 37e is not formed is also provided continuously with the side of the first inverted U-shaped portion 35 on which the first fixing portion 35e is not provided continuously.

Specifically, the rising portion 37a of the third inverted U-shaped portion 37 and the rising portion 35a of the first inverted U-shaped portion 35 are continuously provided by the coupling portion 39.

The connecting portion 39 connects the outer side of the lower end of the rising portion 37a in the longitudinal direction X with the outer side of the lower end of the rising portion 35a in the width direction Y.

As described above, in the present embodiment, the first fixing portion 35e, the second fixing portion 36e, and the third fixing portion 37e are provided at the free ends of the first inverted U-shaped portion 35, the second inverted U-shaped portion 36, and the third inverted U-shaped portion 37, which are not continuously provided.

With this configuration, since the fixing portions are formed in three directions (one end in the longitudinal direction X and both ends in the width direction Y), the socket-side holding fitting 34 can be more firmly fixed to the first circuit board 60.

In particular, since the fixing portion is provided at the free end of the socket-side holding metal fitting 34, the socket-side holding metal fitting 34 is less likely to deform, and the socket-side holding metal fitting 34 can be more firmly fixed to the first circuit board 60.

In the present embodiment, the socket-side holding metal fitting 34 is attached (disposed) to the socket housing 31 by insert molding. At this time, at least a part of the socket-side holding fitting 34 is exposed along the socket housing 31.

That is, at least a portion of the socket-side holding fitting 34 is exposed along the outer surface of the socket housing 31.

Specifically, the first inverted U-shaped portion 35 is exposed from the inner surface (inner surface 31r of the peripheral wall portion 31 b) 31v side of the short-side wall portion 31i to the outer surface (outer surface 31p of the peripheral wall portion 31 b) 31t side of the short-side wall portion 31 i.

In the present embodiment, substantially the whole of the first inverted U-shaped portion 35 (the rising portion 35a, the inclined portion 35b, the arcuate portion 35c, the descending portion 35d, and the first fixing portion 35 e) is exposed along the outer surface of the socket housing 31.

At this time, a part of the outer surfaces of the peripheral wall portion 31b and the plate-like wall portion 31a and the lowered portion 35d of the socket-side holding fitting 34 are substantially coplanar. In other words, the socket-side holding fitting 34 is integrally molded with the socket housing 31 such that the lowered portion 35d of the socket-side holding fitting 34 is exposed to the outer surface of the peripheral wall portion 31b in a substantially coplanar state.

The second inverted U-shaped portion 36 is exposed from the inner surface 31U side of the longitudinal wall portion 31h (the inner surface 31r of the peripheral wall portion 31 b) to the outer surface 31s side of the longitudinal wall portion 31h (the outer surface 31p of the peripheral wall portion 31 b).

In the present embodiment, substantially the whole of the second inverted U-shaped portion 36 (the rising portion 36a, the inclined portion 36b, the arcuate portion 36c, the descending portion 36d, and the second fixing portion 36 e) is exposed along the outer surface of the socket housing 31.

At this time, a part of the outer surfaces of the peripheral wall portion 31b and the plate-like wall portion 31a and the lowered portion 36d of the socket-side holding fitting 34 are substantially coplanar. In other words, the socket-side holding fitting 34 is integrally molded with the socket housing 31 such that the lowered portion 36d of the socket-side holding fitting 34 is exposed to the outer surface of the peripheral wall portion 31b in a substantially coplanar state.

The third reverse U-shaped portion 37 is exposed from the inner surface 31U side of the longitudinal wall portion 31h (the inner surface 31r of the peripheral wall portion 31 b) to the outer surface 31s side of the longitudinal wall portion 31h (the outer surface 31p of the peripheral wall portion 31 b).

In the present embodiment, the substantially entire third turning U-shaped portion 37 (the rising portion 37a, the inclined portion 37b, the arcuate portion 37c, the descending portion 37d, and the third fixing portion 37 e) is exposed along the outer surface of the socket housing 31.

At this time, a part of the outer surfaces of the peripheral wall portion 31b and the plate-like wall portion 31a and the lowered portion 37d of the socket-side holding fitting 34 are substantially coplanar. In other words, the socket-side holding fitting 34 is integrally molded with the socket housing 31 such that the lowered portion 37d of the socket-side holding fitting 34 is exposed to the outer surface of the peripheral wall portion 31b in a substantially coplanar state.

In the present embodiment, the coupling portion 38 and the coupling portion 39 are exposed in a state of being non-coplanar with respect to the bottom surface of the socket housing 31 (the outer surface 31w of the plate-like wall portion 31 a), but the coupling portion 38 and the coupling portion 39 may be exposed in a state of being coplanar with respect to the bottom surface of the socket housing 31 (the outer surface 31w of the plate-like wall portion 31 a). Further, the socket-side holding fitting 34 does not need to be exposed to the outer surface 31p of the peripheral wall portion 31b, and even in the exposed state, it does not need to be exposed in a coplanar state with respect to the outer surface 31p of the peripheral wall portion 31 b.

As shown in fig. 25 and 26, the peripheral wall portion 21b of the plug housing 21 is inserted into and fitted into the fitting groove portion 31d of the socket housing 31, whereby the plug 20 is fitted into the socket 30.

In addition, when the plug 20 is fitted to the socket 30, for example, the tapered portion 31e and the tapered portion 21d formed in the long side portion on one end side in the Y direction (width direction: short side direction) can be overlapped with each other, and the plug 20 can be fitted to the socket 30 while moving toward the other end side in the Y direction (width direction: short side direction). In this way, the tapered portions 31e and 21d can function as guide portions, and the plug 20 can be fitted to the socket 30 more easily.

At this time, the joint portions (bent portions) of the lower wall portion 24a and the side wall portion of the header-side holding metal fitting 24 are brought into contact with at least any one of the inclined portions 35b, 36b, 37b and are introduced into the fitting groove portion 31 d.

In a state where the plug 20 is fitted to the socket 30, the contact portion R1 of the socket-side signal terminal 32 and the contact portion R1 of the plug-side signal terminal 22 are in contact with each other.

The contact portions R2 of the socket-side signal terminals 32 and the contact portions R2 of the header-side signal terminals 22 are in contact with each other.

The contact portion R3 of the socket-side power supply terminal 33 and the contact portion R3 of the plug-side power supply terminal 23 are in contact with each other.

The contact portion R4 of the socket-side power supply terminal 33 and the contact portion R4 of the plug-side power supply terminal 23 are in contact with each other.

As a result, the socket-side signal terminal 32 and the header-side signal terminal 22 are electrically connected, and the socket-side power terminal 33 and the header-side power terminal 23 are electrically connected.

The plug-side holding metal fitting 24 and the socket-side holding metal fitting 34 are electrically connected via the socket-side power supply terminal 33 and the plug-side power supply terminal 23.

Thus, the circuit pattern of the first circuit substrate 60 and the circuit pattern of the second circuit substrate 40 are electrically connected to each other.

At this time, the first side wall portion 24b or the side piece 24c of the plug-side holding fitting 24 may be in contact with any one of the lowered portions 35d, 36d, 37d of the socket-side holding fitting 34. In addition, the plug-side holding metal fitting 24 and the socket-side holding metal fitting 34 may be configured not to contact each other in a state where the plug 20 is fitted to the socket 30.

On the other hand, when the plug 20 and the socket 30 are separated, both are pulled out in the separation direction. Then, the step-shaped engagement portion 32d slides relative to the step-shaped engaged portion 22e, and the spring portions (32 e, 32f, 32g, 32h, 32i, 32j, 32k, 32 m) of the socket-side signal terminal 32 elastically deform, so that the engagement between the engagement portion 33d and the engaged portion 32e is released. At this time, the fitting of the arcuate projection 32k into the recess 22c is also released.

The step-shaped locking portion 33d slides relative to the step-shaped locked portion 23d, and the spring portions (33 e, 33f, 33g, 33h, 33i, 33j, 33k, 33 m) of the socket-side power supply terminal 33 elastically deform, so that the locking of the locking portion 33d to the locked portion 23d is released. At this time, the fitting of the arcuate projection 33k into the recess 23b is also released.

In this way, the plug 20 can be separated from the socket 30.

Further, a lock mechanism may be provided in the plug-side holding fitting 24 and the socket-side holding fitting 34, and the plug-side holding fitting 24 and the socket-side holding fitting 34 may be engaged with each other in a state where the plug 20 is fitted into the socket 30.

In the present embodiment, the header-side signal terminal 22 and the header-side power supply terminal 23 are attached to the header housing 21 such that the heights in the Z direction of the tip end portion on the side of the socket 30 become substantially the same when the header 20 is fitted to the socket 30.

On the other hand, the socket-side signal terminal 32 and the socket-side power terminal 33 are attached to the socket housing 31 such that the heights in the Z direction of the tip end portion on the side of the header 20 become substantially the same when the header 20 is fitted to the socket 30.

Therefore, when the plug 20 is fitted to the socket 30, the contact between the plug-side power supply terminal 23 and the socket-side power supply terminal 33 and the contact between the plug-side signal terminal 22 and the socket-side signal terminal 32 are performed substantially simultaneously.

In addition, when the plug 20 and the socket 30 are separated, the contact between the plug-side power supply terminal 23 and the socket-side power supply terminal 33 is released, and the contact between the plug-side signal terminal 22 and the socket-side signal terminal 32 is released substantially simultaneously.

In the present embodiment, as described above, the plug-side holding fittings 24 are disposed at both ends in the longitudinal direction X of the plug housing 21, and the socket-side holding fittings 34 are disposed at both ends in the longitudinal direction X of the socket housing 31. The plug-side holding fitting 24 and the socket-side holding fitting 34 are used for improving the strength of the plug housing 21 and the socket housing 31, and for mounting and fixing to the above-described circuit boards, respectively.

In the present embodiment, the fixing portion of the header-side holding metal fitting 24 is soldered to the second circuit board 40, so that the header 20 is firmly bonded to the second circuit board 40.

Further, the socket 30 is firmly bonded to the first circuit board 60 by soldering the fixing portion of the socket-side holding fitting 34 to the first circuit board 60.

With this configuration, the plug 20 and the socket 30 firmly coupled to the respective circuit boards can be fitted to each other.

As described above, the socket-side holding metal fitting (holding metal fitting used for one connector) 34 of the present embodiment is insert-molded in the socket housing (housing of the connector) 31 of the socket 30.

The socket-side holding fitting 34 has: a first inverted U-shaped portion (first U-shaped portion) 35 extending in the width direction (one direction) Y; a second inverted U-shaped portion (second U-shaped portion) 36 that extends in the longitudinal direction (direction intersecting one direction) X and is disposed on one side of the width direction (one direction) Y of the first inverted U-shaped portion 35; and a third inverted U-shaped portion (third U-shaped portion) 37 that extends in the longitudinal direction (direction intersecting one direction) X and is disposed on the other side of the width direction (one direction) Y of the first inverted U-shaped portion 35.

The first inverted U-shaped portion 35, the second inverted U-shaped portion 36, and the third inverted U-shaped portion 37 are insert-molded to the peripheral wall portion 31b of the socket housing (housing of the connector) 31.

In this way, the strength of the socket housing (housing of the connector) 31 can be further improved.

As described above, according to the present embodiment, the socket-side holding metal fitting (holding metal fitting) 34 that can further improve the strength of the socket housing (housing) 31 of the socket (connector) 30 can be obtained. Further, the socket (connector body) 30 and the connector 10 including the socket-side holding metal fitting (holding metal fitting) 34 can be obtained.

In the present embodiment, the first inverted U-shaped portion 35, the second inverted U-shaped portion 36, and the third inverted U-shaped portion 37 are exposed on the inner surface 31r side of the peripheral wall portion 31 b.

For example, when the inverted U-shaped portions are buried in the socket housing (housing of the connector) 31, the socket housing (housing of the connector) 31 is broken. In contrast, as in the present embodiment, if the inverted U-shaped portions are exposed to the inner surface 31r side of the peripheral wall portion 31b, the socket housing (housing of the connector) 31 can be prevented from being broken. As a result, the strength of the socket housing (housing of the connector) 31 can be further improved.

In the present embodiment, the first inverted U-shaped portion 35, the second inverted U-shaped portion 36, and the third inverted U-shaped portion 37 are exposed from the inner surface 31r side to the outer surface 31p side of the peripheral wall portion 31 b.

In this way, deformation of the peripheral wall portion 31b can be suppressed when the plug 20 is fitted to the socket 30 or the like.

In the present embodiment, the fixing portion is further provided to be fixed to the first circuit board (circuit board) 60.

The fixing portion includes: a first fixing portion 35e formed in the vicinity of the first inverted U-shaped portion 35; a second fixing portion 36e formed in the vicinity of the second inverted U-shaped portion 36; and a third fixing portion 37e formed in the vicinity of the third inverted U-shaped portion 37.

In this way, the socket 30 can be more firmly fixed to the first circuit board (circuit board) 60.

In the present embodiment, the first fixing portion 35e is provided continuously with the first inverted U-shaped portion 35, the second fixing portion 36e is provided continuously with the second inverted U-shaped portion 36, and the third fixing portion 37e is provided continuously with the third inverted U-shaped portion 37.

Further, in the present embodiment, the second inverted U-shaped portion 36 is provided continuously with the first inverted U-shaped portion 35. One side of the second inverted U-shaped portion 36, to which the second fixing portion 36e is not connected, is provided continuously with one side of the first inverted U-shaped portion 35, to which the first fixing portion 35e is not provided continuously.

In this way, the socket 30 can be further firmly fixed to the first circuit board (circuit board) 60.

A gap d2 is formed between the fixing portion (the first fixing portion 35e, the second fixing portion 36e, and the third fixing portion 37 e) and the socket housing 31. The gap d2 has a function as a release portion of solder at the time of soldering the fixing portion and a function as a heat radiation portion for suppressing the temperature of the socket housing 31 from becoming excessively high.

In the present embodiment, the first inverted U-shaped portion 35, the second inverted U-shaped portion 36, and the third inverted U-shaped portion 37 are electrically connected to the header-side holding metal fitting (metal fitting) 24 provided on the header (member on the opposite side of the connector-connecting body) 20.

In this way, heat generated by the socket-side holding metal fitting 34 and the header-side holding metal fitting (metal fitting) 24 can be radiated more efficiently. As a result, the rated current can be further improved.

The connector 10 of the present embodiment includes a socket 30, and the socket 30 includes a substantially rectangular socket housing 31 in which a socket-side signal terminal (first socket terminal) 32 and a socket-side power supply terminal (second socket terminal) 33 wider than the socket-side signal terminal (first socket terminal) 32 are disposed.

The connector 10 further includes a header 20, and the header 20 includes a substantially rectangular header housing 21 in which header-side signal terminals (first header terminals) 22 and header-side power supply terminals (second header terminals) 23 wider than the header-side signal terminals (first header terminals) 22 are disposed.

The socket-side power supply terminals (second plug terminals) 33 are disposed only on one side in the longitudinal direction X and one side in the short direction Y of the socket housing 31, and on the other side in the longitudinal direction X and the other side in the short direction Y of the socket housing 31.

That is, two socket-side power supply terminals (second socket terminals) 33 are arranged in the socket housing 31, and the two socket-side power supply terminals (second socket terminals) 33 are arranged in diagonal portions of the rectangular (oblong) socket housing 31.

In this way, the socket-side signal terminals (first socket terminals) 32 can be arranged at the diagonal portions of the rectangular (oblong) socket housing 31 where the socket-side power supply terminals (second socket terminals) 33 are not arranged.

As a result, the socket housing 31 can be miniaturized in the longitudinal direction X.

The socket 30 of the present embodiment includes a substantially rectangular socket housing 31 in which a socket-side signal terminal (first socket terminal) 32 and a socket-side power supply terminal (second socket terminal) 33 wider than the socket-side signal terminal (first socket terminal) 32 are disposed.

The socket-side power supply terminal (second socket terminal) 33 is disposed only on one side in the longitudinal direction X and one side in the short direction Y of the socket housing 31, and on the other side in the longitudinal direction X and the other side in the short direction Y of the socket housing 31.

Thus, the socket housing 31 can be miniaturized in the longitudinal direction X.

The header 20 of the present embodiment includes a substantially rectangular header housing 21 in which header-side signal terminals (first header terminals) 22 and header-side power supply terminals (second header terminals) 23 wider than the header-side signal terminals (first header terminals) 22 are disposed.

The plug-side power supply terminals (second plug terminals) 23 are disposed only on one side in the longitudinal direction X and one side in the short direction Y of the plug housing 21, and on the other side in the longitudinal direction X and the other side in the short direction Y of the plug housing 21.

In this way, the header housing 21 can be miniaturized in the longitudinal direction X.

As described above, according to the present embodiment, the connector 10, the header 20, and the socket 30, which can be further miniaturized, can be obtained.

In the present embodiment, the plug 20 is formed so as to be point-symmetrical with respect to the center of the plug 20 in a plan view, and the socket 30 is formed so as to be point-symmetrical with respect to the center of the socket 30 in a plan view. Therefore, breakage of the plug 20 and the socket 30 due to the reverse fitting can be suppressed.

In the present embodiment, the side surface shape of the socket-side signal terminal (first socket terminal) 32 and the side surface shape of the socket-side power supply terminal (second socket terminal) 33 are substantially the same.

The socket-side signal terminals (first socket terminals) 32 and the socket-side power terminals (second socket terminals) 33 are arranged in a row along the longitudinal direction X of the socket housing 31.

In this way, the fitting balance of the socket-side signal terminal (first socket terminal) 32 and the socket-side power terminal (second socket terminal) 33 is good, and therefore the plug 20 can be easily fitted to the socket 30.

Further, the terminal capable of improving the contact reliability can be more easily designed, and the fitting holding force of the plug 20 and the socket 30 can be further improved.

In the present embodiment, the socket-side signal terminal 32 has a plurality of socket-side signal terminal groups (first socket terminal groups) G4 arranged along the longitudinal direction X of the socket housing 31.

The socket-side power supply terminal 33 is disposed further outside in the longitudinal direction X of the socket housing 31 than the socket-side signal terminal group G4.

In this way, by disposing the socket-side power supply terminal 33 having a large heat generation amount at a position outside the socket-side signal terminal group G4 in the longitudinal direction X of the socket housing 31, heat dissipation can be improved.

Further, by disposing the plurality of socket-side signal terminals 32 on only one side in the longitudinal direction X with respect to the socket-side power supply terminal 33, noise generated at the socket-side signal terminals 32 can be reduced.

In the present embodiment, the socket-side signal terminal (first socket terminal) 32 includes: the first socket terminal side contact portions R1, R2, which are contacted by the header side signal terminals (first header terminals) 22, and the root portion (first socket terminal side fixing portion) 32a, which is fixed to the first circuit board (circuit board) 60.

On the other hand, the socket-side power supply terminal (second socket terminal) 33 includes: the second socket terminal side contact portions R3, R4, which are in contact with the socket side power supply terminal (second socket terminal) 23, and the root portion (second socket terminal side fixing portion) 33a, which is fixed to the first circuit board (circuit board) 60.

In a state where the socket-side signal terminal 32 and the socket-side power supply terminal 33 are disposed in the socket housing 31, the distance between the root portion (first socket-side terminal-side fixing portion) 32a and the root portion (second socket-side terminal-side fixing portion) 33a is greater than the distance between the contact portions (first socket-side terminal-side contact portions) R1 and R2 of the socket-side signal terminal 32 and the contact portions (second socket-side terminal-side contact portions) R3 and R4 of the socket-side power supply terminal 33.

In this way, the insulation distance between the socket-side power supply terminal (second socket terminal) 33 and the socket-side signal terminal (first socket terminal) 32 (the distance between the root portion 33a and the root portion 32a adjacent to each other in the X direction) can be increased.

In the present embodiment, the second socket terminal-side contact portions are provided at both of R3 and R4 in the socket-side power supply terminal (second socket terminal) 33.

Further, the cross-sectional area of the contact portion R3 located on one side near the root portion (second socket terminal side fixing portion) 33a among the contact portion R3 and the contact portion R4 is larger than the cross-sectional area of the contact portion R4 located on the other side. The cross-sectional area of the second socket terminal side contact portion R3 located on one side near the root portion (second socket terminal side fixing portion) 33a of the second socket terminal side contact portions R3, R4 is made larger than the cross-sectional area of the second socket terminal side contact portion R4 on the other side.

In this way, the conductor resistance of the socket-side power supply terminal (second socket terminal) 33 can be reduced more effectively.

In the present embodiment, the thickness of the socket-side power supply terminal (second socket terminal) 33 is set to be smaller than the thickness of the socket-side signal terminal (first socket terminal) 32.

In this way, the contact force between the wide socket-side power supply terminal (second socket terminal) 33 and the header-side power supply terminal (second header terminal) 23 can be made close to the contact force between the narrow socket-side signal terminal (first socket terminal) 32 and the header-side signal terminal (first header terminal) 22.

As a result, the socket-side signal terminals (first socket terminals) 32 and the socket-side power terminals (second socket terminals) 33 are well-balanced in fit, and the plug 20 can be easily fitted to the socket 30.

Further, since the bending workability at the time of forming the socket-side power supply terminal (second socket terminal) 33 can be further improved, the occurrence of cracks or the like can be suppressed. As a result, the conductor resistance of the socket-side power supply terminal (second socket terminal) 33 and the contact force with the plug-side power supply terminal (second plug terminal) 23 can be stabilized.

In the present embodiment, a locking portion 33d for locking the plug-side power supply terminal (second plug terminal) 23 is formed in the plug-side power supply terminal (second plug terminal) 33.

In this way, the fitting holding force between the plug 20 and the socket 30 can be further improved.

In the present embodiment, the plug-side power supply terminal (second plug terminal) 23 is formed with a locked portion 23d that is locked by the locking portion 33d of the socket-side power supply terminal (second socket terminal) 33.

In the present embodiment, a socket-side holding metal fitting 34 is disposed in the socket housing 31, and a socket-side power supply terminal (second socket terminal) 33 and the socket-side holding metal fitting 34 are provided separately.

In this way, the structure of the socket-side power supply terminal (second socket terminal) 33 and the structure of the socket-side holding metal fitting 34 can be further simplified.

Further, the socket-side power supply terminal (second socket terminal) 33 and the socket-side holding metal fitting 34 can be manufactured more accurately than in the case where the socket-side power supply terminal (second socket terminal) 33 and the socket-side holding metal fitting 34 are integrated.

In the present embodiment, a plug-side holding metal fitting 24 is disposed in the plug housing 21, and a plug-side power supply terminal (second plug terminal) 23 and the plug-side holding metal fitting 24 are integrally provided.

In this way, heat generated by the plug-side power supply terminal (second plug terminal) 23 can be efficiently dissipated.

In the present embodiment, the socket-side holding fitting 34 and the plug-side holding fitting 24 are electrically connected.

In this way, heat generated by the socket-side power supply terminal (second socket terminal) 33 and the header-side power supply terminal (second header terminal) 23 can be radiated more efficiently. As a result, the rated current can be further improved.

While the preferred embodiments of the present disclosure have been described above, the present disclosure is not limited to the above embodiments, and various modifications are possible.

For example, in the above-described embodiment, the connector (nonpolar connector) is exemplified in which the header 20 is formed so as to be point-symmetrical with respect to the center of the header 20 in a plan view, and the socket 30 is formed so as to be point-symmetrical with respect to the center of the socket 30 in a plan view.

However, the present disclosure may also be applied to a connector having polarity (a connector that does not become the same shape when rotated 180 degrees).

Further, the plug-side holding fitting and the socket-side holding fitting may be engaged with each other in a state where the plug 20 and the socket 30 are fitted.

Further, the second socket terminal and the second header terminal may be used as terminals for ground connection. In this way, the reliability of the ground connection can be further improved.

Further, the second socket terminal and the socket-side holding fitting may be provided as separate bodies, and the second plug terminal and the second socket terminal may be used as power supply terminals, and the socket-side holding fitting and the plug-side holding fitting may be used as ground connection terminals.

Further, the present disclosure can also be applied to a header member as a connector connecting body.

The specifications (shape, size, layout, etc.) of the socket-side housing, the header-side housing, and other detailed portions may be changed as appropriate.

Symbol description

10. Connector with a plurality of connectors

20. Plug assembly

21. Plug piece shell

22. Plug side signal terminal (first plug terminal)

23. Plug side power supply terminal (second plug terminal)

24. Plug-side holding fitting

30. Socket piece

31. Socket piece shell

32. Socket side signal terminal (first socket terminal)

33. Socket side power supply terminal (second socket terminal)

34. Socket side holding fitting

35. First inverted U-shaped portion (first U-shaped portion)

36. Second reverse U-shaped part (second U-shaped part)

37. Third reverse U-shaped part (third U-shaped part)

40. Second circuit board (Circuit board)

60. First circuit board (Circuit board)

R1-R5 contact portions

Direction of X long side

Y short side direction (width direction)

Z is up and down.

Claims

1. A connector comprises a terminal, a holding fitting, and a housing having a peripheral wall portion,

the peripheral wall portion has:

a first wall portion extending in a first direction; and

a second wall portion and a third wall portion extending in a second direction intersecting the first direction and opposed in the first direction,

The holding fitting is provided with:

a first U-shaped portion disposed on the first wall portion and extending in the first direction;

a second U-shaped portion disposed on the second wall portion;

a third U-shaped portion disposed on the third wall portion; and

a connecting portion connecting the first U-shaped portion and the second U-shaped portion,

the first U-shaped portion, the second U-shaped portion, and the third U-shaped portion are curved to be convex upward in a state in which a side of the connector body opposite to the counterpart connector body faces upward in a third direction intersecting the first direction and the second direction,

the connecting part is connected with at least any one of the lower ends of the first U-shaped part and the second U-shaped part,

the connector connecting body is provided with a first fixing part fixed on the circuit substrate,

the first fixing portion extends from one side of the first U-shaped portion, which is not connected with the second U-shaped portion and the third U-shaped portion.

2. The connector body according to claim 1, wherein,

the connecting portion is connected with the lower end of the first U-shaped portion and the lower end of the second U-shaped portion.

3. The connector body according to claim 1, wherein,

the first U-shaped portion, the second U-shaped portion, and the third U-shaped portion each have:

a rising portion which is arranged on the inner surface side of the housing and extends in the third direction;

a descent portion disposed on an outer surface side of the case and extending in the third direction; and

and a bending portion connecting an upper end in the third direction in the rising portion and an upper end in the third direction in the falling portion.

4. The connector body according to claim 1, wherein,

at least a part of the connecting portion is exposed from the housing.

5. The connector body according to claim 1, wherein,

the holding fitting is in the form of a plate,

the connecting portion has a surface intersecting the plate thickness direction of the connecting portion and orthogonal to the third direction.

6. The connector body according to claim 1, wherein,

the connector connecting body is provided with a second fixing part and a third fixing part which are fixed on the circuit substrate,

the second fixing part extends from one side of the second U-shaped part which is not connected with the first U-shaped part,

The third fixing part is arranged in an extending mode on the third U-shaped part.

7. The connector body according to claim 1, wherein,

the connecting portion is connected with the lower end of the first U-shaped portion and the lower end of the third U-shaped portion.

8. The connector assembly of claim 7, wherein,

the connector connecting body is provided with a third fixing part fixed on the circuit substrate,

the third fixing portion extends from a side of the third U-shaped portion, which is not connected to the first U-shaped portion.

9. The connector body according to claim 1, wherein,

the retaining fitting is insert molded to the housing.

10. A connector provided with the connector body according to any one of claims 1 to 9 and the counterpart connector body.

11. A connector comprises a terminal, a holding fitting, and a housing having a peripheral wall portion,

the peripheral wall portion has:

a first wall portion extending in a first direction; and

the holding fitting is provided with:

a second U-shaped portion disposed on the second wall portion;

a third U-shaped portion disposed on the third wall portion;

at least a part of the connecting portion is arranged between the second U-shaped portion and the third U-shaped portion in the first direction,

12. The connector body of claim 11, wherein the connector body comprises a plurality of pins,

13. The connector body of claim 11, wherein the connector body comprises a plurality of pins,

14. The connector body of claim 11, wherein the connector body comprises a plurality of pins,

the at least one portion of the connecting portion disposed between the second U-shaped portion and the third U-shaped portion is disposed inside the housing in the first direction as compared to the second U-shaped portion and the third U-shaped portion.

15. The connector body of claim 11, wherein the connector body comprises a plurality of pins,

the holding fitting is in the form of a plate,

the at least one portion of the connecting portion disposed between the second U-shaped portion and the third U-shaped portion has a surface intersecting the plate thickness direction of the connecting portion and orthogonal to the third direction.

16. The connector body of claim 11, wherein the connector body comprises a plurality of pins,

at least a part of the connecting portion is exposed from the housing.

17. The connector body of claim 11, wherein the connector body comprises a plurality of pins,

18. The connector body of claim 11, wherein the connector body comprises a plurality of pins,

19. The connector assembly of claim 18, wherein,

20. The connector body of claim 11, wherein the connector body comprises a plurality of pins,

the retaining fitting is insert molded to the housing.

21. A connector provided with the connector body according to any one of claims 11 to 20 and the counterpart connector body.